245625640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{839}}^1$

素因数の和:1426

約数の個数: 64

約数和(自身を含む): 596937600

約数和(自身を除く): 351311960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 563, 839, 1126, 1678, 2252, 2815, 3356, 4195, 4504, 5630, 6712, 7319, 8390, 10907, 11260, 14638, 16780, 21814, 22520, 29276, 33560, 36595, 43628, 54535, 58552, 73190, 87256, 109070, 146380, 218140, 292760, 436280, 472357, 944714, 1889428, 2361785, 3778856, 4723570, 6140641, 9447140, 12281282, 18894280, 24562564, 30703205, 49125128, 61406410, 122812820, 245625640]

約数ペア:

[(1, 245625640), (2, 122812820), (4, 61406410), (5, 49125128), (8, 30703205), (10, 24562564), (13, 18894280), (20, 12281282), (26, 9447140), (40, 6140641), (52, 4723570), (65, 3778856), (104, 2361785), (130, 1889428), (260, 944714), (520, 472357), (563, 436280), (839, 292760), (1126, 218140), (1678, 146380), (2252, 109070), (2815, 87256), (3356, 73190), (4195, 58552), (4504, 54535), (5630, 43628), (6712, 36595), (7319, 33560), (8390, 29276), (10907, 22520), (11260, 21814), (14638, 16780)]