20438730

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:682

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 39001014

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 243, 270, 351, 390, 405, 486, 585, 647, 702, 810, 1053, 1170, 1215, 1294, 1755, 1941, 2106, 2430, 3159, 3235, 3510, 3882, 5265, 5823, 6318, 6470, 8411, 9705, 10530, 11646, 15795, 16822, 17469, 19410, 25233, 29115, 31590, 34938, 42055, 50466, 52407, 58230, 75699, 84110, 87345, 104814, 126165, 151398, 157221, 174690, 227097, 252330, 262035, 314442, 378495, 454194, 524070, 681291, 756990, 786105, 1135485, 1362582, 1572210, 2043873, 2270970, 3406455, 4087746, 6812910, 10219365, 20438730]

約数ペア:

[(1, 20438730), (2, 10219365), (3, 6812910), (5, 4087746), (6, 3406455), (9, 2270970), (10, 2043873), (13, 1572210), (15, 1362582), (18, 1135485), (26, 786105), (27, 756990), (30, 681291), (39, 524070), (45, 454194), (54, 378495), (65, 314442), (78, 262035), (81, 252330), (90, 227097), (117, 174690), (130, 157221), (135, 151398), (162, 126165), (195, 104814), (234, 87345), (243, 84110), (270, 75699), (351, 58230), (390, 52407), (405, 50466), (486, 42055), (585, 34938), (647, 31590), (702, 29115), (810, 25233), (1053, 19410), (1170, 17469), (1215, 16822), (1294, 15795), (1755, 11646), (1941, 10530), (2106, 9705), (2430, 8411), (3159, 6470), (3235, 6318), (3510, 5823), (3882, 5265)]