1249113820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1\times {\mathrm{971}}^1$

素因数の和:1602

約数の個数: 48

約数和(自身を含む): 2651273856

約数和(自身を除く): 1402160036

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 491, 524, 655, 971, 982, 1310, 1942, 1964, 2455, 2620, 3884, 4855, 4910, 9710, 9820, 19420, 64321, 127201, 128642, 254402, 257284, 321605, 476761, 508804, 636005, 643210, 953522, 1272010, 1286420, 1907044, 2383805, 2544020, 4767610, 9535220, 62455691, 124911382, 249822764, 312278455, 624556910, 1249113820]

約数ペア:

[(1, 1249113820), (2, 624556910), (4, 312278455), (5, 249822764), (10, 124911382), (20, 62455691), (131, 9535220), (262, 4767610), (491, 2544020), (524, 2383805), (655, 1907044), (971, 1286420), (982, 1272010), (1310, 953522), (1942, 643210), (1964, 636005), (2455, 508804), (2620, 476761), (3884, 321605), (4855, 257284), (4910, 254402), (9710, 128642), (9820, 127201), (19420, 64321)]