20859800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 53434080

約数和(自身を除く): 32574280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 71, 100, 104, 113, 130, 142, 200, 226, 260, 284, 325, 355, 452, 520, 565, 568, 650, 710, 904, 923, 1130, 1300, 1420, 1469, 1775, 1846, 2260, 2600, 2825, 2840, 2938, 3550, 3692, 4520, 4615, 5650, 5876, 7100, 7345, 7384, 8023, 9230, 11300, 11752, 14200, 14690, 16046, 18460, 22600, 23075, 29380, 32092, 36725, 36920, 40115, 46150, 58760, 64184, 73450, 80230, 92300, 104299, 146900, 160460, 184600, 200575, 208598, 293800, 320920, 401150, 417196, 521495, 802300, 834392, 1042990, 1604600, 2085980, 2607475, 4171960, 5214950, 10429900, 20859800]

約数ペア:

[(1, 20859800), (2, 10429900), (4, 5214950), (5, 4171960), (8, 2607475), (10, 2085980), (13, 1604600), (20, 1042990), (25, 834392), (26, 802300), (40, 521495), (50, 417196), (52, 401150), (65, 320920), (71, 293800), (100, 208598), (104, 200575), (113, 184600), (130, 160460), (142, 146900), (200, 104299), (226, 92300), (260, 80230), (284, 73450), (325, 64184), (355, 58760), (452, 46150), (520, 40115), (565, 36920), (568, 36725), (650, 32092), (710, 29380), (904, 23075), (923, 22600), (1130, 18460), (1300, 16046), (1420, 14690), (1469, 14200), (1775, 11752), (1846, 11300), (2260, 9230), (2600, 8023), (2825, 7384), (2840, 7345), (2938, 7100), (3550, 5876), (3692, 5650), (4520, 4615)]