161524940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 347004000

約数和(自身を除く): 185479060

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 149, 268, 298, 335, 596, 670, 745, 809, 1340, 1490, 1618, 2980, 3236, 4045, 8090, 9983, 16180, 19966, 39932, 49915, 54203, 99830, 108406, 120541, 199660, 216812, 241082, 271015, 482164, 542030, 602705, 1084060, 1205410, 2410820, 8076247, 16152494, 32304988, 40381235, 80762470, 161524940]

約数ペア:

[(1, 161524940), (2, 80762470), (4, 40381235), (5, 32304988), (10, 16152494), (20, 8076247), (67, 2410820), (134, 1205410), (149, 1084060), (268, 602705), (298, 542030), (335, 482164), (596, 271015), (670, 241082), (745, 216812), (809, 199660), (1340, 120541), (1490, 108406), (1618, 99830), (2980, 54203), (3236, 49915), (4045, 39932), (8090, 19966), (9983, 16180)]