20294367200

素因数分解:

$2^5\times 5^2\times {\mathrm{311}}^1\times {\mathrm{81569}}^1$

素因数の和:81900

約数の個数: 72

約数和(自身を含む): 49703537520

約数和(自身を除く): 29409170320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 311, 400, 622, 800, 1244, 1555, 2488, 3110, 4976, 6220, 7775, 9952, 12440, 15550, 24880, 31100, 49760, 62200, 81569, 124400, 163138, 248800, 326276, 407845, 652552, 815690, 1305104, 1631380, 2039225, 2610208, 3262760, 4078450, 6525520, 8156900, 13051040, 16313800, 25367959, 32627600, 50735918, 65255200, 101471836, 126839795, 202943672, 253679590, 405887344, 507359180, 634198975, 811774688, 1014718360, 1268397950, 2029436720, 2536795900, 4058873440, 5073591800, 10147183600, 20294367200]

約数ペア:

[(1, 20294367200), (2, 10147183600), (4, 5073591800), (5, 4058873440), (8, 2536795900), (10, 2029436720), (16, 1268397950), (20, 1014718360), (25, 811774688), (32, 634198975), (40, 507359180), (50, 405887344), (80, 253679590), (100, 202943672), (160, 126839795), (200, 101471836), (311, 65255200), (400, 50735918), (622, 32627600), (800, 25367959), (1244, 16313800), (1555, 13051040), (2488, 8156900), (3110, 6525520), (4976, 4078450), (6220, 3262760), (7775, 2610208), (9952, 2039225), (12440, 1631380), (15550, 1305104), (24880, 815690), (31100, 652552), (49760, 407845), (62200, 326276), (81569, 248800), (124400, 163138)]