256464720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:970

約数の個数: 240

約数和(自身を含む): 952653312

約数和(自身を除く): 696188592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 30, 34, 36, 40, 45, 46, 48, 51, 60, 68, 69, 72, 80, 85, 90, 92, 102, 115, 120, 136, 138, 144, 153, 170, 180, 184, 204, 207, 230, 240, 255, 272, 276, 306, 340, 345, 360, 368, 391, 408, 414, 460, 510, 552, 612, 680, 690, 720, 765, 782, 816, 828, 911, 920, 1020, 1035, 1104, 1173, 1224, 1360, 1380, 1530, 1564, 1656, 1822, 1840, 1955, 2040, 2070, 2346, 2448, 2733, 2760, 3060, 3128, 3312, 3519, 3644, 3910, 4080, 4140, 4555, 4692, 5466, 5520, 5865, 6120, 6256, 7038, 7288, 7820, 8199, 8280, 9110, 9384, 10932, 11730, 12240, 13665, 14076, 14576, 15487, 15640, 16398, 16560, 17595, 18220, 18768, 20953, 21864, 23460, 27330, 28152, 30974, 31280, 32796, 35190, 36440, 40995, 41906, 43728, 46461, 46920, 54660, 56304, 61948, 62859, 65592, 70380, 72880, 77435, 81990, 83812, 92922, 93840, 104765, 109320, 123896, 125718, 131184, 139383, 140760, 154870, 163980, 167624, 185844, 188577, 209530, 218640, 232305, 247792, 251436, 278766, 281520, 309740, 314295, 327960, 335248, 356201, 371688, 377154, 419060, 464610, 502872, 557532, 619480, 628590, 655920, 696915, 712402, 743376, 754308, 838120, 929220, 942885, 1005744, 1068603, 1115064, 1238960, 1257180, 1393830, 1424804, 1508616, 1676240, 1781005, 1858440, 1885770, 2137206, 2230128, 2514360, 2787660, 2849608, 3017232, 3205809, 3562010, 3716880, 3771540, 4274412, 5028720, 5343015, 5575320, 5699216, 6411618, 7124020, 7543080, 8548824, 10686030, 11150640, 12823236, 14248040, 15086160, 16029045, 17097648, 21372060, 25646472, 28496080, 32058090, 42744120, 51292944, 64116180, 85488240, 128232360, 256464720]

約数ペア:

[(1, 256464720), (2, 128232360), (3, 85488240), (4, 64116180), (5, 51292944), (6, 42744120), (8, 32058090), (9, 28496080), (10, 25646472), (12, 21372060), (15, 17097648), (16, 16029045), (17, 15086160), (18, 14248040), (20, 12823236), (23, 11150640), (24, 10686030), (30, 8548824), (34, 7543080), (36, 7124020), (40, 6411618), (45, 5699216), (46, 5575320), (48, 5343015), (51, 5028720), (60, 4274412), (68, 3771540), (69, 3716880), (72, 3562010), (80, 3205809), (85, 3017232), (90, 2849608), (92, 2787660), (102, 2514360), (115, 2230128), (120, 2137206), (136, 1885770), (138, 1858440), (144, 1781005), (153, 1676240), (170, 1508616), (180, 1424804), (184, 1393830), (204, 1257180), (207, 1238960), (230, 1115064), (240, 1068603), (255, 1005744), (272, 942885), (276, 929220), (306, 838120), (340, 754308), (345, 743376), (360, 712402), (368, 696915), (391, 655920), (408, 628590), (414, 619480), (460, 557532), (510, 502872), (552, 464610), (612, 419060), (680, 377154), (690, 371688), (720, 356201), (765, 335248), (782, 327960), (816, 314295), (828, 309740), (911, 281520), (920, 278766), (1020, 251436), (1035, 247792), (1104, 232305), (1173, 218640), (1224, 209530), (1360, 188577), (1380, 185844), (1530, 167624), (1564, 163980), (1656, 154870), (1822, 140760), (1840, 139383), (1955, 131184), (2040, 125718), (2070, 123896), (2346, 109320), (2448, 104765), (2733, 93840), (2760, 92922), (3060, 83812), (3128, 81990), (3312, 77435), (3519, 72880), (3644, 70380), (3910, 65592), (4080, 62859), (4140, 61948), (4555, 56304), (4692, 54660), (5466, 46920), (5520, 46461), (5865, 43728), (6120, 41906), (6256, 40995), (7038, 36440), (7288, 35190), (7820, 32796), (8199, 31280), (8280, 30974), (9110, 28152), (9384, 27330), (10932, 23460), (11730, 21864), (12240, 20953), (13665, 18768), (14076, 18220), (14576, 17595), (15487, 16560), (15640, 16398)]