15876980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 41109768

約数和(自身を除く): 25232788

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 953, 980, 1190, 1666, 1906, 2380, 3332, 3812, 4165, 4765, 6671, 8330, 9530, 13342, 16201, 16660, 19060, 26684, 32402, 33355, 46697, 64804, 66710, 81005, 93394, 113407, 133420, 162010, 186788, 226814, 233485, 324020, 453628, 466970, 567035, 793849, 933940, 1134070, 1587698, 2268140, 3175396, 3969245, 7938490, 15876980]

約数ペア:

[(1, 15876980), (2, 7938490), (4, 3969245), (5, 3175396), (7, 2268140), (10, 1587698), (14, 1134070), (17, 933940), (20, 793849), (28, 567035), (34, 466970), (35, 453628), (49, 324020), (68, 233485), (70, 226814), (85, 186788), (98, 162010), (119, 133420), (140, 113407), (170, 93394), (196, 81005), (238, 66710), (245, 64804), (340, 46697), (476, 33355), (490, 32402), (595, 26684), (833, 19060), (953, 16660), (980, 16201), (1190, 13342), (1666, 9530), (1906, 8330), (2380, 6671), (3332, 4765), (3812, 4165)]