400241840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4463}}^1$

素因数の和:4554

約数の個数: 80

約数和(自身を含む): 996364800

約数和(自身を除く): 596122960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 380, 472, 590, 760, 944, 1121, 1180, 1520, 2242, 2360, 4463, 4484, 4720, 5605, 8926, 8968, 11210, 17852, 17936, 22315, 22420, 35704, 44630, 44840, 71408, 84797, 89260, 89680, 169594, 178520, 263317, 339188, 357040, 423985, 526634, 678376, 847970, 1053268, 1316585, 1356752, 1695940, 2106536, 2633170, 3391880, 4213072, 5003023, 5266340, 6783760, 10006046, 10532680, 20012092, 21065360, 25015115, 40024184, 50030230, 80048368, 100060460, 200120920, 400241840]

約数ペア:

[(1, 400241840), (2, 200120920), (4, 100060460), (5, 80048368), (8, 50030230), (10, 40024184), (16, 25015115), (19, 21065360), (20, 20012092), (38, 10532680), (40, 10006046), (59, 6783760), (76, 5266340), (80, 5003023), (95, 4213072), (118, 3391880), (152, 2633170), (190, 2106536), (236, 1695940), (295, 1356752), (304, 1316585), (380, 1053268), (472, 847970), (590, 678376), (760, 526634), (944, 423985), (1121, 357040), (1180, 339188), (1520, 263317), (2242, 178520), (2360, 169594), (4463, 89680), (4484, 89260), (4720, 84797), (5605, 71408), (8926, 44840), (8968, 44630), (11210, 35704), (17852, 22420), (17936, 22315)]