128565960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2557}}^1$

素因数の和:2990

約数の個数: 64

約数和(自身を含む): 386769600

約数和(自身を除く): 258203640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 419, 838, 1257, 1676, 2095, 2514, 2557, 3352, 4190, 5028, 5114, 6285, 7671, 8380, 10056, 10228, 12570, 12785, 15342, 16760, 20456, 25140, 25570, 30684, 38355, 50280, 51140, 61368, 76710, 102280, 153420, 306840, 1071383, 2142766, 3214149, 4285532, 5356915, 6428298, 8571064, 10713830, 12856596, 16070745, 21427660, 25713192, 32141490, 42855320, 64282980, 128565960]

約数ペア:

[(1, 128565960), (2, 64282980), (3, 42855320), (4, 32141490), (5, 25713192), (6, 21427660), (8, 16070745), (10, 12856596), (12, 10713830), (15, 8571064), (20, 6428298), (24, 5356915), (30, 4285532), (40, 3214149), (60, 2142766), (120, 1071383), (419, 306840), (838, 153420), (1257, 102280), (1676, 76710), (2095, 61368), (2514, 51140), (2557, 50280), (3352, 38355), (4190, 30684), (5028, 25570), (5114, 25140), (6285, 20456), (7671, 16760), (8380, 15342), (10056, 12785), (10228, 12570)]