128583880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 299154240

約数和(自身を除く): 170570360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 283, 296, 307, 370, 566, 614, 740, 1132, 1228, 1415, 1480, 1535, 2264, 2456, 2830, 3070, 5660, 6140, 10471, 11320, 11359, 12280, 20942, 22718, 41884, 45436, 52355, 56795, 83768, 86881, 90872, 104710, 113590, 173762, 209420, 227180, 347524, 418840, 434405, 454360, 695048, 868810, 1737620, 3214597, 3475240, 6429194, 12858388, 16072985, 25716776, 32145970, 64291940, 128583880]

約数ペア:

[(1, 128583880), (2, 64291940), (4, 32145970), (5, 25716776), (8, 16072985), (10, 12858388), (20, 6429194), (37, 3475240), (40, 3214597), (74, 1737620), (148, 868810), (185, 695048), (283, 454360), (296, 434405), (307, 418840), (370, 347524), (566, 227180), (614, 209420), (740, 173762), (1132, 113590), (1228, 104710), (1415, 90872), (1480, 86881), (1535, 83768), (2264, 56795), (2456, 52355), (2830, 45436), (3070, 41884), (5660, 22718), (6140, 20942), (10471, 12280), (11320, 11359)]