420757740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19979}}^1$

素因数の和:20013

約数の個数: 120

約数和(自身を含む): 1421537040

約数和(自身を除く): 1000779300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1053, 1170, 1404, 1620, 1755, 2106, 2340, 3510, 4212, 5265, 7020, 10530, 19979, 21060, 39958, 59937, 79916, 99895, 119874, 179811, 199790, 239748, 259727, 299685, 359622, 399580, 519454, 539433, 599370, 719244, 779181, 899055, 1038908, 1078866, 1198740, 1298635, 1558362, 1618299, 1798110, 2157732, 2337543, 2597270, 2697165, 3116724, 3236598, 3596220, 3895905, 4675086, 5194540, 5394330, 6473196, 7012629, 7791810, 8091495, 9350172, 10788660, 11687715, 14025258, 15583620, 16182990, 21037887, 23375430, 28050516, 32365980, 35063145, 42075774, 46750860, 70126290, 84151548, 105189435, 140252580, 210378870, 420757740]

約数ペア:

[(1, 420757740), (2, 210378870), (3, 140252580), (4, 105189435), (5, 84151548), (6, 70126290), (9, 46750860), (10, 42075774), (12, 35063145), (13, 32365980), (15, 28050516), (18, 23375430), (20, 21037887), (26, 16182990), (27, 15583620), (30, 14025258), (36, 11687715), (39, 10788660), (45, 9350172), (52, 8091495), (54, 7791810), (60, 7012629), (65, 6473196), (78, 5394330), (81, 5194540), (90, 4675086), (108, 3895905), (117, 3596220), (130, 3236598), (135, 3116724), (156, 2697165), (162, 2597270), (180, 2337543), (195, 2157732), (234, 1798110), (260, 1618299), (270, 1558362), (324, 1298635), (351, 1198740), (390, 1078866), (405, 1038908), (468, 899055), (540, 779181), (585, 719244), (702, 599370), (780, 539433), (810, 519454), (1053, 399580), (1170, 359622), (1404, 299685), (1620, 259727), (1755, 239748), (2106, 199790), (2340, 179811), (3510, 119874), (4212, 99895), (5265, 79916), (7020, 59937), (10530, 39958), (19979, 21060)]