20849220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16547}}^1$

素因数の和:16569

約数の個数: 72

約数和(自身を含む): 72281664

約数和(自身を除く): 51432444

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16547, 33094, 49641, 66188, 82735, 99282, 115829, 148923, 165470, 198564, 231658, 248205, 297846, 330940, 347487, 463316, 496410, 579145, 595692, 694974, 744615, 992820, 1042461, 1158290, 1389948, 1489230, 1737435, 2084922, 2316580, 2978460, 3474870, 4169844, 5212305, 6949740, 10424610, 20849220]

約数ペア:

[(1, 20849220), (2, 10424610), (3, 6949740), (4, 5212305), (5, 4169844), (6, 3474870), (7, 2978460), (9, 2316580), (10, 2084922), (12, 1737435), (14, 1489230), (15, 1389948), (18, 1158290), (20, 1042461), (21, 992820), (28, 744615), (30, 694974), (35, 595692), (36, 579145), (42, 496410), (45, 463316), (60, 347487), (63, 330940), (70, 297846), (84, 248205), (90, 231658), (105, 198564), (126, 165470), (140, 148923), (180, 115829), (210, 99282), (252, 82735), (315, 66188), (420, 49641), (630, 33094), (1260, 16547)]