20494860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 61834752

約数和(自身を除く): 41339892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 71, 85, 102, 142, 170, 204, 213, 255, 283, 284, 340, 355, 426, 510, 566, 710, 849, 852, 1020, 1065, 1132, 1207, 1415, 1420, 1698, 2130, 2414, 2830, 3396, 3621, 4245, 4260, 4811, 4828, 5660, 6035, 7242, 8490, 9622, 12070, 14433, 14484, 16980, 18105, 19244, 20093, 24055, 24140, 28866, 36210, 40186, 48110, 57732, 60279, 72165, 72420, 80372, 96220, 100465, 120558, 144330, 200930, 241116, 288660, 301395, 341581, 401860, 602790, 683162, 1024743, 1205580, 1366324, 1707905, 2049486, 3415810, 4098972, 5123715, 6831620, 10247430, 20494860]

約数ペア:

[(1, 20494860), (2, 10247430), (3, 6831620), (4, 5123715), (5, 4098972), (6, 3415810), (10, 2049486), (12, 1707905), (15, 1366324), (17, 1205580), (20, 1024743), (30, 683162), (34, 602790), (51, 401860), (60, 341581), (68, 301395), (71, 288660), (85, 241116), (102, 200930), (142, 144330), (170, 120558), (204, 100465), (213, 96220), (255, 80372), (283, 72420), (284, 72165), (340, 60279), (355, 57732), (426, 48110), (510, 40186), (566, 36210), (710, 28866), (849, 24140), (852, 24055), (1020, 20093), (1065, 19244), (1132, 18105), (1207, 16980), (1415, 14484), (1420, 14433), (1698, 12070), (2130, 9622), (2414, 8490), (2830, 7242), (3396, 6035), (3621, 5660), (4245, 4828), (4260, 4811)]