638828944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1483}}^1$

素因数の和:1632

約数の個数: 80

約数和(自身を含む): 1416923200

約数和(自身を除く): 778094256

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 109, 152, 208, 218, 247, 304, 436, 494, 872, 988, 1417, 1483, 1744, 1976, 2071, 2834, 2966, 3952, 4142, 5668, 5932, 8284, 11336, 11864, 16568, 19279, 22672, 23728, 26923, 28177, 33136, 38558, 53846, 56354, 77116, 107692, 112708, 154232, 161647, 215384, 225416, 308464, 323294, 366301, 430768, 450832, 646588, 732602, 1293176, 1465204, 2101411, 2586352, 2930408, 3071293, 4202822, 5860816, 6142586, 8405644, 12285172, 16811288, 24570344, 33622576, 39926809, 49140688, 79853618, 159707236, 319414472, 638828944]

約数ペア:

[(1, 638828944), (2, 319414472), (4, 159707236), (8, 79853618), (13, 49140688), (16, 39926809), (19, 33622576), (26, 24570344), (38, 16811288), (52, 12285172), (76, 8405644), (104, 6142586), (109, 5860816), (152, 4202822), (208, 3071293), (218, 2930408), (247, 2586352), (304, 2101411), (436, 1465204), (494, 1293176), (872, 732602), (988, 646588), (1417, 450832), (1483, 430768), (1744, 366301), (1976, 323294), (2071, 308464), (2834, 225416), (2966, 215384), (3952, 161647), (4142, 154232), (5668, 112708), (5932, 107692), (8284, 77116), (11336, 56354), (11864, 53846), (16568, 38558), (19279, 33136), (22672, 28177), (23728, 26923)]