8907120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 120

約数和(自身を含む): 30466800

約数和(自身を除く): 21559680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 139, 144, 178, 180, 240, 267, 278, 356, 360, 417, 445, 534, 556, 695, 712, 720, 801, 834, 890, 1068, 1112, 1251, 1335, 1390, 1424, 1602, 1668, 1780, 2085, 2136, 2224, 2502, 2670, 2780, 3204, 3336, 3560, 4005, 4170, 4272, 5004, 5340, 5560, 6255, 6408, 6672, 7120, 8010, 8340, 10008, 10680, 11120, 12371, 12510, 12816, 16020, 16680, 20016, 21360, 24742, 25020, 32040, 33360, 37113, 49484, 50040, 61855, 64080, 74226, 98968, 100080, 111339, 123710, 148452, 185565, 197936, 222678, 247420, 296904, 371130, 445356, 494840, 556695, 593808, 742260, 890712, 989680, 1113390, 1484520, 1781424, 2226780, 2969040, 4453560, 8907120]

約数ペア:

[(1, 8907120), (2, 4453560), (3, 2969040), (4, 2226780), (5, 1781424), (6, 1484520), (8, 1113390), (9, 989680), (10, 890712), (12, 742260), (15, 593808), (16, 556695), (18, 494840), (20, 445356), (24, 371130), (30, 296904), (36, 247420), (40, 222678), (45, 197936), (48, 185565), (60, 148452), (72, 123710), (80, 111339), (89, 100080), (90, 98968), (120, 74226), (139, 64080), (144, 61855), (178, 50040), (180, 49484), (240, 37113), (267, 33360), (278, 32040), (356, 25020), (360, 24742), (417, 21360), (445, 20016), (534, 16680), (556, 16020), (695, 12816), (712, 12510), (720, 12371), (801, 11120), (834, 10680), (890, 10008), (1068, 8340), (1112, 8010), (1251, 7120), (1335, 6672), (1390, 6408), (1424, 6255), (1602, 5560), (1668, 5340), (1780, 5004), (2085, 4272), (2136, 4170), (2224, 4005), (2502, 3560), (2670, 3336), (2780, 3204)]