20437950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 55996416

約数和(自身を除く): 35558466

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 47, 50, 65, 75, 78, 94, 130, 141, 150, 195, 223, 235, 282, 325, 390, 446, 470, 611, 650, 669, 705, 975, 1115, 1175, 1222, 1338, 1410, 1833, 1950, 2230, 2350, 2899, 3055, 3345, 3525, 3666, 5575, 5798, 6110, 6690, 7050, 8697, 9165, 10481, 11150, 14495, 15275, 16725, 17394, 18330, 20962, 28990, 30550, 31443, 33450, 43485, 45825, 52405, 62886, 72475, 86970, 91650, 104810, 136253, 144950, 157215, 217425, 262025, 272506, 314430, 408759, 434850, 524050, 681265, 786075, 817518, 1362530, 1572150, 2043795, 3406325, 4087590, 6812650, 10218975, 20437950]

約数ペア:

[(1, 20437950), (2, 10218975), (3, 6812650), (5, 4087590), (6, 3406325), (10, 2043795), (13, 1572150), (15, 1362530), (25, 817518), (26, 786075), (30, 681265), (39, 524050), (47, 434850), (50, 408759), (65, 314430), (75, 272506), (78, 262025), (94, 217425), (130, 157215), (141, 144950), (150, 136253), (195, 104810), (223, 91650), (235, 86970), (282, 72475), (325, 62886), (390, 52405), (446, 45825), (470, 43485), (611, 33450), (650, 31443), (669, 30550), (705, 28990), (975, 20962), (1115, 18330), (1175, 17394), (1222, 16725), (1338, 15275), (1410, 14495), (1833, 11150), (1950, 10481), (2230, 9165), (2350, 8697), (2899, 7050), (3055, 6690), (3345, 6110), (3525, 5798), (3666, 5575)]