128784540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69239}}^1$

素因数の和:69282

約数の個数: 48

約数和(自身を含む): 372234240

約数和(自身を除く): 243449700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 69239, 138478, 207717, 276956, 346195, 415434, 692390, 830868, 1038585, 1384780, 2077170, 2146409, 4154340, 4292818, 6439227, 8585636, 10732045, 12878454, 21464090, 25756908, 32196135, 42928180, 64392270, 128784540]

約数ペア:

[(1, 128784540), (2, 64392270), (3, 42928180), (4, 32196135), (5, 25756908), (6, 21464090), (10, 12878454), (12, 10732045), (15, 8585636), (20, 6439227), (30, 4292818), (31, 4154340), (60, 2146409), (62, 2077170), (93, 1384780), (124, 1038585), (155, 830868), (186, 692390), (310, 415434), (372, 346195), (465, 276956), (620, 207717), (930, 138478), (1860, 69239)]