31498480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1034

約数の個数: 80

約数和(自身を含む): 81494784

約数和(自身を除く): 49996304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 977, 1040, 1240, 1612, 1954, 2015, 2480, 3224, 3908, 4030, 4885, 6448, 7816, 8060, 9770, 12701, 15632, 16120, 19540, 25402, 30287, 32240, 39080, 50804, 60574, 63505, 78160, 101608, 121148, 127010, 151435, 203216, 242296, 254020, 302870, 393731, 484592, 508040, 605740, 787462, 1016080, 1211480, 1574924, 1968655, 2422960, 3149848, 3937310, 6299696, 7874620, 15749240, 31498480]

約数ペア:

[(1, 31498480), (2, 15749240), (4, 7874620), (5, 6299696), (8, 3937310), (10, 3149848), (13, 2422960), (16, 1968655), (20, 1574924), (26, 1211480), (31, 1016080), (40, 787462), (52, 605740), (62, 508040), (65, 484592), (80, 393731), (104, 302870), (124, 254020), (130, 242296), (155, 203216), (208, 151435), (248, 127010), (260, 121148), (310, 101608), (403, 78160), (496, 63505), (520, 60574), (620, 50804), (806, 39080), (977, 32240), (1040, 30287), (1240, 25402), (1612, 19540), (1954, 16120), (2015, 15632), (2480, 12701), (3224, 9770), (3908, 8060), (4030, 7816), (4885, 6448)]