169407940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{7321}}^1$

素因数の和:7432

約数の個数: 48

約数和(自身を含む): 387480240

約数和(自身を除く): 218072300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 7321, 11570, 14642, 23140, 29284, 36605, 73210, 95173, 146420, 190346, 380692, 475865, 651569, 951730, 1303138, 1903460, 2606276, 3257845, 6515690, 8470397, 13031380, 16940794, 33881588, 42351985, 84703970, 169407940]

約数ペア:

[(1, 169407940), (2, 84703970), (4, 42351985), (5, 33881588), (10, 16940794), (13, 13031380), (20, 8470397), (26, 6515690), (52, 3257845), (65, 2606276), (89, 1903460), (130, 1303138), (178, 951730), (260, 651569), (356, 475865), (445, 380692), (890, 190346), (1157, 146420), (1780, 95173), (2314, 73210), (4628, 36605), (5785, 29284), (7321, 23140), (11570, 14642)]