157883960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 409812480

約数和(自身を除く): 251928520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 43, 46, 52, 65, 86, 92, 104, 115, 130, 172, 184, 215, 230, 260, 299, 307, 344, 430, 460, 520, 559, 598, 614, 860, 920, 989, 1118, 1196, 1228, 1495, 1535, 1720, 1978, 2236, 2392, 2456, 2795, 2990, 3070, 3956, 3991, 4472, 4945, 5590, 5980, 6140, 7061, 7912, 7982, 9890, 11180, 11960, 12280, 12857, 13201, 14122, 15964, 19780, 19955, 22360, 25714, 26402, 28244, 31928, 35305, 39560, 39910, 51428, 52804, 56488, 64285, 66005, 70610, 79820, 91793, 102856, 105608, 128570, 132010, 141220, 159640, 171613, 183586, 257140, 264020, 282440, 303623, 343226, 367172, 458965, 514280, 528040, 607246, 686452, 734344, 858065, 917930, 1214492, 1372904, 1518115, 1716130, 1835860, 2428984, 3036230, 3432260, 3671720, 3947099, 6072460, 6864520, 7894198, 12144920, 15788396, 19735495, 31576792, 39470990, 78941980, 157883960]

約数ペア:

[(1, 157883960), (2, 78941980), (4, 39470990), (5, 31576792), (8, 19735495), (10, 15788396), (13, 12144920), (20, 7894198), (23, 6864520), (26, 6072460), (40, 3947099), (43, 3671720), (46, 3432260), (52, 3036230), (65, 2428984), (86, 1835860), (92, 1716130), (104, 1518115), (115, 1372904), (130, 1214492), (172, 917930), (184, 858065), (215, 734344), (230, 686452), (260, 607246), (299, 528040), (307, 514280), (344, 458965), (430, 367172), (460, 343226), (520, 303623), (559, 282440), (598, 264020), (614, 257140), (860, 183586), (920, 171613), (989, 159640), (1118, 141220), (1196, 132010), (1228, 128570), (1495, 105608), (1535, 102856), (1720, 91793), (1978, 79820), (2236, 70610), (2392, 66005), (2456, 64285), (2795, 56488), (2990, 52804), (3070, 51428), (3956, 39910), (3991, 39560), (4472, 35305), (4945, 31928), (5590, 28244), (5980, 26402), (6140, 25714), (7061, 22360), (7912, 19955), (7982, 19780), (9890, 15964), (11180, 14122), (11960, 13201), (12280, 12857)]