20999604990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{265247}}^1$

素因数の和:265306

約数の個数: 128

約数和(自身を含む): 64168796160

約数和(自身を除く): 43169191170

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 29, 30, 35, 39, 42, 58, 65, 70, 78, 87, 91, 105, 130, 145, 174, 182, 195, 203, 210, 273, 290, 377, 390, 406, 435, 455, 546, 609, 754, 870, 910, 1015, 1131, 1218, 1365, 1885, 2030, 2262, 2639, 2730, 3045, 3770, 5278, 5655, 6090, 7917, 11310, 13195, 15834, 26390, 39585, 79170, 265247, 530494, 795741, 1326235, 1591482, 1856729, 2652470, 3448211, 3713458, 3978705, 5570187, 6896422, 7692163, 7957410, 9283645, 10344633, 11140374, 15384326, 17241055, 18567290, 20689266, 23076489, 24137477, 27850935, 34482110, 38460815, 46152978, 48274954, 51723165, 53845141, 55701870, 72412431, 76921630, 99998119, 103446330, 107690282, 115382445, 120687385, 144824862, 161535423, 199996238, 230764890, 241374770, 269225705, 299994357, 323070846, 362062155, 499990595, 538451410, 599988714, 699986833, 724124310, 807677115, 999981190, 1399973666, 1499971785, 1615354230, 2099960499, 2999943570, 3499934165, 4199920998, 6999868330, 10499802495, 20999604990]

約数ペア:

[(1, 20999604990), (2, 10499802495), (3, 6999868330), (5, 4199920998), (6, 3499934165), (7, 2999943570), (10, 2099960499), (13, 1615354230), (14, 1499971785), (15, 1399973666), (21, 999981190), (26, 807677115), (29, 724124310), (30, 699986833), (35, 599988714), (39, 538451410), (42, 499990595), (58, 362062155), (65, 323070846), (70, 299994357), (78, 269225705), (87, 241374770), (91, 230764890), (105, 199996238), (130, 161535423), (145, 144824862), (174, 120687385), (182, 115382445), (195, 107690282), (203, 103446330), (210, 99998119), (273, 76921630), (290, 72412431), (377, 55701870), (390, 53845141), (406, 51723165), (435, 48274954), (455, 46152978), (546, 38460815), (609, 34482110), (754, 27850935), (870, 24137477), (910, 23076489), (1015, 20689266), (1131, 18567290), (1218, 17241055), (1365, 15384326), (1885, 11140374), (2030, 10344633), (2262, 9283645), (2639, 7957410), (2730, 7692163), (3045, 6896422), (3770, 5570187), (5278, 3978705), (5655, 3713458), (6090, 3448211), (7917, 2652470), (11310, 1856729), (13195, 1591482), (15834, 1326235), (26390, 795741), (39585, 530494), (79170, 265247)]