215502080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5431}}^1$

素因数の和:5483

約数の個数: 72

約数和(自身を含む): 532944384

約数和(自身を除く): 317442304

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, 5431, 7936, 9920, 10862, 19840, 21724, 27155, 39680, 43448, 54310, 86896, 108620, 168361, 173792, 217240, 336722, 347584, 434480, 673444, 695168, 841805, 868960, 1346888, 1390336, 1683610, 1737920, 2693776, 3367220, 3475840, 5387552, 6734440, 6951680, 10775104, 13468880, 21550208, 26937760, 43100416, 53875520, 107751040, 215502080]

約数ペア:

[(1, 215502080), (2, 107751040), (4, 53875520), (5, 43100416), (8, 26937760), (10, 21550208), (16, 13468880), (20, 10775104), (31, 6951680), (32, 6734440), (40, 5387552), (62, 3475840), (64, 3367220), (80, 2693776), (124, 1737920), (128, 1683610), (155, 1390336), (160, 1346888), (248, 868960), (256, 841805), (310, 695168), (320, 673444), (496, 434480), (620, 347584), (640, 336722), (992, 217240), (1240, 173792), (1280, 168361), (1984, 108620), (2480, 86896), (3968, 54310), (4960, 43448), (5431, 39680), (7936, 27155), (9920, 21724), (10862, 19840)]