215482240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10861}}^1$

素因数の和:10911

約数の個数: 64

約数和(自身を含む): 531803520

約数和(自身を除く): 316321280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10861, 19840, 21722, 43444, 54305, 86888, 108610, 173776, 217220, 336691, 347552, 434440, 673382, 695104, 868880, 1346764, 1390208, 1683455, 1737760, 2693528, 3366910, 3475520, 5387056, 6733820, 6951040, 10774112, 13467640, 21548224, 26935280, 43096448, 53870560, 107741120, 215482240]

約数ペア:

[(1, 215482240), (2, 107741120), (4, 53870560), (5, 43096448), (8, 26935280), (10, 21548224), (16, 13467640), (20, 10774112), (31, 6951040), (32, 6733820), (40, 5387056), (62, 3475520), (64, 3366910), (80, 2693528), (124, 1737760), (128, 1683455), (155, 1390208), (160, 1346764), (248, 868880), (310, 695104), (320, 673382), (496, 434440), (620, 347552), (640, 336691), (992, 217220), (1240, 173776), (1984, 108610), (2480, 86888), (3968, 54305), (4960, 43444), (9920, 21722), (10861, 19840)]