17831720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 24080920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 131, 164, 166, 205, 262, 328, 332, 410, 415, 524, 655, 664, 820, 830, 1048, 1310, 1640, 1660, 2620, 3320, 3403, 5240, 5371, 6806, 10742, 10873, 13612, 17015, 21484, 21746, 26855, 27224, 34030, 42968, 43492, 53710, 54365, 68060, 86984, 107420, 108730, 136120, 214840, 217460, 434920, 445793, 891586, 1783172, 2228965, 3566344, 4457930, 8915860, 17831720]

約数ペア:

[(1, 17831720), (2, 8915860), (4, 4457930), (5, 3566344), (8, 2228965), (10, 1783172), (20, 891586), (40, 445793), (41, 434920), (82, 217460), (83, 214840), (131, 136120), (164, 108730), (166, 107420), (205, 86984), (262, 68060), (328, 54365), (332, 53710), (410, 43492), (415, 42968), (524, 34030), (655, 27224), (664, 26855), (820, 21746), (830, 21484), (1048, 17015), (1310, 13612), (1640, 10873), (1660, 10742), (2620, 6806), (3320, 5371), (3403, 5240)]