161854960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1951}}^1$

素因数の和:2042

約数の個数: 80

約数和(自身を含む): 405188352

約数和(自身を除く): 243333392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 488, 610, 680, 976, 1037, 1220, 1360, 1951, 2074, 2440, 3902, 4148, 4880, 5185, 7804, 8296, 9755, 10370, 15608, 16592, 19510, 20740, 31216, 33167, 39020, 41480, 66334, 78040, 82960, 119011, 132668, 156080, 165835, 238022, 265336, 331670, 476044, 530672, 595055, 663340, 952088, 1190110, 1326680, 1904176, 2023187, 2380220, 2653360, 4046374, 4760440, 8092748, 9520880, 10115935, 16185496, 20231870, 32370992, 40463740, 80927480, 161854960]

約数ペア:

[(1, 161854960), (2, 80927480), (4, 40463740), (5, 32370992), (8, 20231870), (10, 16185496), (16, 10115935), (17, 9520880), (20, 8092748), (34, 4760440), (40, 4046374), (61, 2653360), (68, 2380220), (80, 2023187), (85, 1904176), (122, 1326680), (136, 1190110), (170, 952088), (244, 663340), (272, 595055), (305, 530672), (340, 476044), (488, 331670), (610, 265336), (680, 238022), (976, 165835), (1037, 156080), (1220, 132668), (1360, 119011), (1951, 82960), (2074, 78040), (2440, 66334), (3902, 41480), (4148, 39020), (4880, 33167), (5185, 31216), (7804, 20740), (8296, 19510), (9755, 16592), (10370, 15608)]