1778757680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1297}}^1$

素因数の和:1427

約数の個数: 160

約数和(自身を含む): 4944445440

約数和(自身を除く): 3165687760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 79, 80, 112, 124, 140, 155, 158, 217, 248, 280, 310, 316, 395, 434, 496, 553, 560, 620, 632, 790, 868, 1085, 1106, 1240, 1264, 1297, 1580, 1736, 2170, 2212, 2449, 2480, 2594, 2765, 3160, 3472, 4340, 4424, 4898, 5188, 5530, 6320, 6485, 8680, 8848, 9079, 9796, 10376, 11060, 12245, 12970, 17143, 17360, 18158, 19592, 20752, 22120, 24490, 25940, 34286, 36316, 39184, 40207, 44240, 45395, 48980, 51880, 68572, 72632, 80414, 85715, 90790, 97960, 102463, 103760, 137144, 145264, 160828, 171430, 181580, 195920, 201035, 204926, 274288, 281449, 321656, 342860, 363160, 402070, 409852, 512315, 562898, 643312, 685720, 717241, 726320, 804140, 819704, 1024630, 1125796, 1371440, 1407245, 1434482, 1608280, 1639408, 2049260, 2251592, 2814490, 2868964, 3176353, 3216560, 3586205, 4098520, 4503184, 5628980, 5737928, 6352706, 7172410, 8197040, 11257960, 11475856, 12705412, 14344820, 15881765, 22234471, 22515920, 25410824, 28689640, 31763530, 44468942, 50821648, 57379280, 63527060, 88937884, 111172355, 127054120, 177875768, 222344710, 254108240, 355751536, 444689420, 889378840, 1778757680]

約数ペア:

[(1, 1778757680), (2, 889378840), (4, 444689420), (5, 355751536), (7, 254108240), (8, 222344710), (10, 177875768), (14, 127054120), (16, 111172355), (20, 88937884), (28, 63527060), (31, 57379280), (35, 50821648), (40, 44468942), (56, 31763530), (62, 28689640), (70, 25410824), (79, 22515920), (80, 22234471), (112, 15881765), (124, 14344820), (140, 12705412), (155, 11475856), (158, 11257960), (217, 8197040), (248, 7172410), (280, 6352706), (310, 5737928), (316, 5628980), (395, 4503184), (434, 4098520), (496, 3586205), (553, 3216560), (560, 3176353), (620, 2868964), (632, 2814490), (790, 2251592), (868, 2049260), (1085, 1639408), (1106, 1608280), (1240, 1434482), (1264, 1407245), (1297, 1371440), (1580, 1125796), (1736, 1024630), (2170, 819704), (2212, 804140), (2449, 726320), (2480, 717241), (2594, 685720), (2765, 643312), (3160, 562898), (3472, 512315), (4340, 409852), (4424, 402070), (4898, 363160), (5188, 342860), (5530, 321656), (6320, 281449), (6485, 274288), (8680, 204926), (8848, 201035), (9079, 195920), (9796, 181580), (10376, 171430), (11060, 160828), (12245, 145264), (12970, 137144), (17143, 103760), (17360, 102463), (18158, 97960), (19592, 90790), (20752, 85715), (22120, 80414), (24490, 72632), (25940, 68572), (34286, 51880), (36316, 48980), (39184, 45395), (40207, 44240)]