71504020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2137}}^1$

素因数の和:2392

約数の個数: 48

約数和(自身を含む): 172408320

約数和(自身を除く): 100904300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1673, 2137, 2390, 3346, 4274, 4780, 6692, 8365, 8548, 10685, 14959, 16730, 21370, 29918, 33460, 42740, 59836, 74795, 149590, 299180, 510743, 1021486, 2042972, 2553715, 3575201, 5107430, 7150402, 10214860, 14300804, 17876005, 35752010, 71504020]

約数ペア:

[(1, 71504020), (2, 35752010), (4, 17876005), (5, 14300804), (7, 10214860), (10, 7150402), (14, 5107430), (20, 3575201), (28, 2553715), (35, 2042972), (70, 1021486), (140, 510743), (239, 299180), (478, 149590), (956, 74795), (1195, 59836), (1673, 42740), (2137, 33460), (2390, 29918), (3346, 21370), (4274, 16730), (4780, 14959), (6692, 10685), (8365, 8548)]