408906980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:421

約数の個数: 96

約数和(自身を含む): 939724800

約数和(自身を除く): 530817820

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 127, 148, 185, 190, 229, 254, 370, 380, 458, 508, 635, 703, 740, 916, 1145, 1270, 1406, 2290, 2413, 2540, 2812, 3515, 4351, 4580, 4699, 4826, 7030, 8473, 8702, 9398, 9652, 12065, 14060, 16946, 17404, 18796, 21755, 23495, 24130, 29083, 33892, 42365, 43510, 46990, 48260, 58166, 84730, 87020, 89281, 93980, 116332, 145415, 160987, 169460, 178562, 290830, 321974, 357124, 446405, 552577, 581660, 643948, 804935, 892810, 1076071, 1105154, 1609870, 1785620, 2152142, 2210308, 2762885, 3219740, 4304284, 5380355, 5525770, 10760710, 11051540, 20445349, 21521420, 40890698, 81781396, 102226745, 204453490, 408906980]

約数ペア:

[(1, 408906980), (2, 204453490), (4, 102226745), (5, 81781396), (10, 40890698), (19, 21521420), (20, 20445349), (37, 11051540), (38, 10760710), (74, 5525770), (76, 5380355), (95, 4304284), (127, 3219740), (148, 2762885), (185, 2210308), (190, 2152142), (229, 1785620), (254, 1609870), (370, 1105154), (380, 1076071), (458, 892810), (508, 804935), (635, 643948), (703, 581660), (740, 552577), (916, 446405), (1145, 357124), (1270, 321974), (1406, 290830), (2290, 178562), (2413, 169460), (2540, 160987), (2812, 145415), (3515, 116332), (4351, 93980), (4580, 89281), (4699, 87020), (4826, 84730), (7030, 58166), (8473, 48260), (8702, 46990), (9398, 43510), (9652, 42365), (12065, 33892), (14060, 29083), (16946, 24130), (17404, 23495), (18796, 21755)]