120784900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 278384960

約数和(自身を除く): 157600060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 151, 190, 302, 380, 421, 475, 604, 755, 842, 950, 1510, 1684, 1900, 2105, 2869, 3020, 3775, 4210, 5738, 7550, 7999, 8420, 10525, 11476, 14345, 15100, 15998, 21050, 28690, 31996, 39995, 42100, 57380, 63571, 71725, 79990, 127142, 143450, 159980, 199975, 254284, 286900, 317855, 399950, 635710, 799900, 1207849, 1271420, 1589275, 2415698, 3178550, 4831396, 6039245, 6357100, 12078490, 24156980, 30196225, 60392450, 120784900]

約数ペア:

[(1, 120784900), (2, 60392450), (4, 30196225), (5, 24156980), (10, 12078490), (19, 6357100), (20, 6039245), (25, 4831396), (38, 3178550), (50, 2415698), (76, 1589275), (95, 1271420), (100, 1207849), (151, 799900), (190, 635710), (302, 399950), (380, 317855), (421, 286900), (475, 254284), (604, 199975), (755, 159980), (842, 143450), (950, 127142), (1510, 79990), (1684, 71725), (1900, 63571), (2105, 57380), (2869, 42100), (3020, 39995), (3775, 31996), (4210, 28690), (5738, 21050), (7550, 15998), (7999, 15100), (8420, 14345), (10525, 11476)]