25000880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 63638784

約数和(自身を除く): 38637904

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 593, 620, 680, 1054, 1186, 1240, 1360, 2108, 2372, 2480, 2635, 2965, 4216, 4744, 5270, 5930, 8432, 9488, 10081, 10540, 11860, 18383, 20162, 21080, 23720, 36766, 40324, 42160, 47440, 50405, 73532, 80648, 91915, 100810, 147064, 161296, 183830, 201620, 294128, 312511, 367660, 403240, 625022, 735320, 806480, 1250044, 1470640, 1562555, 2500088, 3125110, 5000176, 6250220, 12500440, 25000880]

約数ペア:

[(1, 25000880), (2, 12500440), (4, 6250220), (5, 5000176), (8, 3125110), (10, 2500088), (16, 1562555), (17, 1470640), (20, 1250044), (31, 806480), (34, 735320), (40, 625022), (62, 403240), (68, 367660), (80, 312511), (85, 294128), (124, 201620), (136, 183830), (155, 161296), (170, 147064), (248, 100810), (272, 91915), (310, 80648), (340, 73532), (496, 50405), (527, 47440), (593, 42160), (620, 40324), (680, 36766), (1054, 23720), (1186, 21080), (1240, 20162), (1360, 18383), (2108, 11860), (2372, 10540), (2480, 10081), (2635, 9488), (2965, 8432), (4216, 5930), (4744, 5270)]