205521810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 128

約数和(自身を含む): 553464576

約数和(自身を除く): 347942766

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 61, 65, 78, 106, 122, 130, 159, 163, 183, 195, 265, 305, 318, 326, 366, 390, 489, 530, 610, 689, 793, 795, 815, 915, 978, 1378, 1586, 1590, 1630, 1830, 2067, 2119, 2379, 2445, 3233, 3445, 3965, 4134, 4238, 4758, 4890, 6357, 6466, 6890, 7930, 8639, 9699, 9943, 10335, 10595, 11895, 12714, 16165, 17278, 19398, 19886, 20670, 21190, 23790, 25917, 29829, 31785, 32330, 42029, 43195, 48495, 49715, 51834, 59658, 63570, 84058, 86390, 96990, 99430, 112307, 126087, 129259, 129585, 149145, 210145, 224614, 252174, 258518, 259170, 298290, 336921, 387777, 420290, 526979, 561535, 630435, 646295, 673842, 775554, 1053958, 1123070, 1260870, 1292590, 1580937, 1684605, 1938885, 2634895, 3161874, 3369210, 3877770, 5269790, 6850727, 7904685, 13701454, 15809370, 20552181, 34253635, 41104362, 68507270, 102760905, 205521810]

約数ペア:

[(1, 205521810), (2, 102760905), (3, 68507270), (5, 41104362), (6, 34253635), (10, 20552181), (13, 15809370), (15, 13701454), (26, 7904685), (30, 6850727), (39, 5269790), (53, 3877770), (61, 3369210), (65, 3161874), (78, 2634895), (106, 1938885), (122, 1684605), (130, 1580937), (159, 1292590), (163, 1260870), (183, 1123070), (195, 1053958), (265, 775554), (305, 673842), (318, 646295), (326, 630435), (366, 561535), (390, 526979), (489, 420290), (530, 387777), (610, 336921), (689, 298290), (793, 259170), (795, 258518), (815, 252174), (915, 224614), (978, 210145), (1378, 149145), (1586, 129585), (1590, 129259), (1630, 126087), (1830, 112307), (2067, 99430), (2119, 96990), (2379, 86390), (2445, 84058), (3233, 63570), (3445, 59658), (3965, 51834), (4134, 49715), (4238, 48495), (4758, 43195), (4890, 42029), (6357, 32330), (6466, 31785), (6890, 29829), (7930, 25917), (8639, 23790), (9699, 21190), (9943, 20670), (10335, 19886), (10595, 19398), (11895, 17278), (12714, 16165)]