253553960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 665625600

約数和(自身を除く): 412071640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 31, 40, 44, 55, 58, 62, 88, 110, 116, 124, 145, 155, 220, 232, 248, 290, 310, 319, 341, 440, 580, 620, 638, 641, 682, 899, 1160, 1240, 1276, 1282, 1364, 1595, 1705, 1798, 2552, 2564, 2728, 3190, 3205, 3410, 3596, 4495, 5128, 6380, 6410, 6820, 7051, 7192, 8990, 9889, 12760, 12820, 13640, 14102, 17980, 18589, 19778, 19871, 25640, 28204, 35255, 35960, 37178, 39556, 39742, 49445, 56408, 70510, 74356, 79112, 79484, 92945, 98890, 99355, 141020, 148712, 158968, 185890, 197780, 198710, 204479, 218581, 282040, 371780, 395560, 397420, 408958, 437162, 576259, 743560, 794840, 817916, 874324, 1022395, 1092905, 1152518, 1635832, 1748648, 2044790, 2185810, 2305036, 2881295, 4089580, 4371620, 4610072, 5762590, 6338849, 8179160, 8743240, 11525180, 12677698, 23050360, 25355396, 31694245, 50710792, 63388490, 126776980, 253553960]

約数ペア:

[(1, 253553960), (2, 126776980), (4, 63388490), (5, 50710792), (8, 31694245), (10, 25355396), (11, 23050360), (20, 12677698), (22, 11525180), (29, 8743240), (31, 8179160), (40, 6338849), (44, 5762590), (55, 4610072), (58, 4371620), (62, 4089580), (88, 2881295), (110, 2305036), (116, 2185810), (124, 2044790), (145, 1748648), (155, 1635832), (220, 1152518), (232, 1092905), (248, 1022395), (290, 874324), (310, 817916), (319, 794840), (341, 743560), (440, 576259), (580, 437162), (620, 408958), (638, 397420), (641, 395560), (682, 371780), (899, 282040), (1160, 218581), (1240, 204479), (1276, 198710), (1282, 197780), (1364, 185890), (1595, 158968), (1705, 148712), (1798, 141020), (2552, 99355), (2564, 98890), (2728, 92945), (3190, 79484), (3205, 79112), (3410, 74356), (3596, 70510), (4495, 56408), (5128, 49445), (6380, 39742), (6410, 39556), (6820, 37178), (7051, 35960), (7192, 35255), (8990, 28204), (9889, 25640), (12760, 19871), (12820, 19778), (13640, 18589), (14102, 17980)]