21217600

素因数分解:

$2^6\times 5^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 84

約数和(自身を含む): 53149500

約数和(自身を除く): 31931900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 149, 160, 178, 200, 298, 320, 356, 400, 445, 596, 712, 745, 800, 890, 1192, 1424, 1490, 1600, 1780, 2225, 2384, 2848, 2980, 3560, 3725, 4450, 4768, 5696, 5960, 7120, 7450, 8900, 9536, 11920, 13261, 14240, 14900, 17800, 23840, 26522, 28480, 29800, 35600, 47680, 53044, 59600, 66305, 71200, 106088, 119200, 132610, 142400, 212176, 238400, 265220, 331525, 424352, 530440, 663050, 848704, 1060880, 1326100, 2121760, 2652200, 4243520, 5304400, 10608800, 21217600]

約数ペア:

[(1, 21217600), (2, 10608800), (4, 5304400), (5, 4243520), (8, 2652200), (10, 2121760), (16, 1326100), (20, 1060880), (25, 848704), (32, 663050), (40, 530440), (50, 424352), (64, 331525), (80, 265220), (89, 238400), (100, 212176), (149, 142400), (160, 132610), (178, 119200), (200, 106088), (298, 71200), (320, 66305), (356, 59600), (400, 53044), (445, 47680), (596, 35600), (712, 29800), (745, 28480), (800, 26522), (890, 23840), (1192, 17800), (1424, 14900), (1490, 14240), (1600, 13261), (1780, 11920), (2225, 9536), (2384, 8900), (2848, 7450), (2980, 7120), (3560, 5960), (3725, 5696), (4450, 4768)]