1440920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 3719520

約数和(自身を除く): 2278600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 163, 170, 221, 260, 326, 340, 442, 520, 652, 680, 815, 884, 1105, 1304, 1630, 1768, 2119, 2210, 2771, 3260, 4238, 4420, 5542, 6520, 8476, 8840, 10595, 11084, 13855, 16952, 21190, 22168, 27710, 36023, 42380, 55420, 72046, 84760, 110840, 144092, 180115, 288184, 360230, 720460, 1440920]

約数ペア:

[(1, 1440920), (2, 720460), (4, 360230), (5, 288184), (8, 180115), (10, 144092), (13, 110840), (17, 84760), (20, 72046), (26, 55420), (34, 42380), (40, 36023), (52, 27710), (65, 22168), (68, 21190), (85, 16952), (104, 13855), (130, 11084), (136, 10595), (163, 8840), (170, 8476), (221, 6520), (260, 5542), (326, 4420), (340, 4238), (442, 3260), (520, 2771), (652, 2210), (680, 2119), (815, 1768), (884, 1630), (1105, 1304)]