2251663780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{907}}^1$

素因数の和:1121

約数の個数: 96

約数和(自身を含む): 5125478400

約数和(自身を除く): 2873814620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 139, 188, 190, 235, 278, 380, 470, 556, 695, 893, 907, 940, 1390, 1786, 1814, 2641, 2780, 3572, 3628, 4465, 4535, 5282, 6533, 8930, 9070, 10564, 13066, 13205, 17233, 17860, 18140, 26132, 26410, 32665, 34466, 42629, 52820, 65330, 68932, 85258, 86165, 124127, 126073, 130660, 170516, 172330, 213145, 248254, 252146, 344660, 426290, 496508, 504292, 620635, 630365, 809951, 852580, 1241270, 1260730, 1619902, 2395387, 2482540, 2521460, 3239804, 4049755, 4790774, 5925431, 8099510, 9581548, 11850862, 11976935, 16199020, 23701724, 23953870, 29627155, 47907740, 59254310, 112583189, 118508620, 225166378, 450332756, 562915945, 1125831890, 2251663780]

約数ペア:

[(1, 2251663780), (2, 1125831890), (4, 562915945), (5, 450332756), (10, 225166378), (19, 118508620), (20, 112583189), (38, 59254310), (47, 47907740), (76, 29627155), (94, 23953870), (95, 23701724), (139, 16199020), (188, 11976935), (190, 11850862), (235, 9581548), (278, 8099510), (380, 5925431), (470, 4790774), (556, 4049755), (695, 3239804), (893, 2521460), (907, 2482540), (940, 2395387), (1390, 1619902), (1786, 1260730), (1814, 1241270), (2641, 852580), (2780, 809951), (3572, 630365), (3628, 620635), (4465, 504292), (4535, 496508), (5282, 426290), (6533, 344660), (8930, 252146), (9070, 248254), (10564, 213145), (13066, 172330), (13205, 170516), (17233, 130660), (17860, 126073), (18140, 124127), (26132, 86165), (26410, 85258), (32665, 68932), (34466, 65330), (42629, 52820)]