1900403720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{1451}}^1$

素因数の和:1838

約数の個数: 64

約数和(自身を含む): 4328121600

約数和(自身を除く): 2427717880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 239, 274, 478, 548, 685, 956, 1096, 1195, 1370, 1451, 1912, 2390, 2740, 2902, 4780, 5480, 5804, 7255, 9560, 11608, 14510, 29020, 32743, 58040, 65486, 130972, 163715, 198787, 261944, 327430, 346789, 397574, 654860, 693578, 795148, 993935, 1309720, 1387156, 1590296, 1733945, 1987870, 2774312, 3467890, 3975740, 6935780, 7951480, 13871560, 47510093, 95020186, 190040372, 237550465, 380080744, 475100930, 950201860, 1900403720]

約数ペア:

[(1, 1900403720), (2, 950201860), (4, 475100930), (5, 380080744), (8, 237550465), (10, 190040372), (20, 95020186), (40, 47510093), (137, 13871560), (239, 7951480), (274, 6935780), (478, 3975740), (548, 3467890), (685, 2774312), (956, 1987870), (1096, 1733945), (1195, 1590296), (1370, 1387156), (1451, 1309720), (1912, 993935), (2390, 795148), (2740, 693578), (2902, 654860), (4780, 397574), (5480, 346789), (5804, 327430), (7255, 261944), (9560, 198787), (11608, 163715), (14510, 130972), (29020, 65486), (32743, 58040)]