311936560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{977}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 784387296

約数和(自身を除く): 472450736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 307, 520, 614, 977, 1040, 1228, 1535, 1954, 2456, 3070, 3908, 3991, 4885, 4912, 6140, 7816, 7982, 9770, 12280, 12701, 15632, 15964, 19540, 19955, 24560, 25402, 31928, 39080, 39910, 50804, 63505, 63856, 78160, 79820, 101608, 127010, 159640, 203216, 254020, 299939, 319280, 508040, 599878, 1016080, 1199756, 1499695, 2399512, 2999390, 3899207, 4799024, 5998780, 7798414, 11997560, 15596828, 19496035, 23995120, 31193656, 38992070, 62387312, 77984140, 155968280, 311936560]

約数ペア:

[(1, 311936560), (2, 155968280), (4, 77984140), (5, 62387312), (8, 38992070), (10, 31193656), (13, 23995120), (16, 19496035), (20, 15596828), (26, 11997560), (40, 7798414), (52, 5998780), (65, 4799024), (80, 3899207), (104, 2999390), (130, 2399512), (208, 1499695), (260, 1199756), (307, 1016080), (520, 599878), (614, 508040), (977, 319280), (1040, 299939), (1228, 254020), (1535, 203216), (1954, 159640), (2456, 127010), (3070, 101608), (3908, 79820), (3991, 78160), (4885, 63856), (4912, 63505), (6140, 50804), (7816, 39910), (7982, 39080), (9770, 31928), (12280, 25402), (12701, 24560), (15632, 19955), (15964, 19540)]