256938360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1181}}^1$

素因数の和:1246

約数の個数: 192

約数和(自身を含む): 921676320

約数和(自身を除く): 664737960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 49, 56, 60, 70, 74, 84, 98, 105, 111, 120, 140, 147, 148, 168, 185, 196, 210, 222, 245, 259, 280, 294, 296, 370, 392, 420, 444, 490, 518, 555, 588, 735, 740, 777, 840, 888, 980, 1036, 1110, 1176, 1181, 1295, 1470, 1480, 1554, 1813, 1960, 2072, 2220, 2362, 2590, 2940, 3108, 3543, 3626, 3885, 4440, 4724, 5180, 5439, 5880, 5905, 6216, 7086, 7252, 7770, 8267, 9065, 9448, 10360, 10878, 11810, 14172, 14504, 15540, 16534, 17715, 18130, 21756, 23620, 24801, 27195, 28344, 31080, 33068, 35430, 36260, 41335, 43512, 43697, 47240, 49602, 54390, 57869, 66136, 70860, 72520, 82670, 87394, 99204, 108780, 115738, 124005, 131091, 141720, 165340, 173607, 174788, 198408, 217560, 218485, 231476, 248010, 262182, 289345, 305879, 330680, 347214, 349576, 436970, 462952, 496020, 524364, 578690, 611758, 655455, 694428, 868035, 873940, 917637, 992040, 1048728, 1157380, 1223516, 1310910, 1388856, 1529395, 1736070, 1747880, 1835274, 2141153, 2314760, 2447032, 2621820, 3058790, 3472140, 3670548, 4282306, 4588185, 5243640, 6117580, 6423459, 6944280, 7341096, 8564612, 9176370, 10705765, 12235160, 12846918, 17129224, 18352740, 21411530, 25693836, 32117295, 36705480, 42823060, 51387672, 64234590, 85646120, 128469180, 256938360]

約数ペア:

[(1, 256938360), (2, 128469180), (3, 85646120), (4, 64234590), (5, 51387672), (6, 42823060), (7, 36705480), (8, 32117295), (10, 25693836), (12, 21411530), (14, 18352740), (15, 17129224), (20, 12846918), (21, 12235160), (24, 10705765), (28, 9176370), (30, 8564612), (35, 7341096), (37, 6944280), (40, 6423459), (42, 6117580), (49, 5243640), (56, 4588185), (60, 4282306), (70, 3670548), (74, 3472140), (84, 3058790), (98, 2621820), (105, 2447032), (111, 2314760), (120, 2141153), (140, 1835274), (147, 1747880), (148, 1736070), (168, 1529395), (185, 1388856), (196, 1310910), (210, 1223516), (222, 1157380), (245, 1048728), (259, 992040), (280, 917637), (294, 873940), (296, 868035), (370, 694428), (392, 655455), (420, 611758), (444, 578690), (490, 524364), (518, 496020), (555, 462952), (588, 436970), (735, 349576), (740, 347214), (777, 330680), (840, 305879), (888, 289345), (980, 262182), (1036, 248010), (1110, 231476), (1176, 218485), (1181, 217560), (1295, 198408), (1470, 174788), (1480, 173607), (1554, 165340), (1813, 141720), (1960, 131091), (2072, 124005), (2220, 115738), (2362, 108780), (2590, 99204), (2940, 87394), (3108, 82670), (3543, 72520), (3626, 70860), (3885, 66136), (4440, 57869), (4724, 54390), (5180, 49602), (5439, 47240), (5880, 43697), (5905, 43512), (6216, 41335), (7086, 36260), (7252, 35430), (7770, 33068), (8267, 31080), (9065, 28344), (9448, 27195), (10360, 24801), (10878, 23620), (11810, 21756), (14172, 18130), (14504, 17715), (15540, 16534)]