220501760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5557}}^1$

素因数の和:5609

約数の個数: 72

約数和(自身を含む): 545306496

約数和(自身を除く): 324804736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5557, 7936, 9920, 11114, 19840, 22228, 27785, 39680, 44456, 55570, 88912, 111140, 172267, 177824, 222280, 344534, 355648, 444560, 689068, 711296, 861335, 889120, 1378136, 1422592, 1722670, 1778240, 2756272, 3445340, 3556480, 5512544, 6890680, 7112960, 11025088, 13781360, 22050176, 27562720, 44100352, 55125440, 110250880, 220501760]

約数ペア:

[(1, 220501760), (2, 110250880), (4, 55125440), (5, 44100352), (8, 27562720), (10, 22050176), (16, 13781360), (20, 11025088), (31, 7112960), (32, 6890680), (40, 5512544), (62, 3556480), (64, 3445340), (80, 2756272), (124, 1778240), (128, 1722670), (155, 1422592), (160, 1378136), (248, 889120), (256, 861335), (310, 711296), (320, 689068), (496, 444560), (620, 355648), (640, 344534), (992, 222280), (1240, 177824), (1280, 172267), (1984, 111140), (2480, 88912), (3968, 55570), (4960, 44456), (5557, 39680), (7936, 27785), (9920, 22228), (11114, 19840)]