163356440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{991}}^1$

素因数の和:1332

約数の個数: 64

約数和(自身を含む): 397474560

約数和(自身を除く): 234118120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 317, 520, 634, 991, 1268, 1585, 1982, 2536, 3170, 3964, 4121, 4955, 6340, 7928, 8242, 9910, 12680, 12883, 16484, 19820, 20605, 25766, 32968, 39640, 41210, 51532, 64415, 82420, 103064, 128830, 164840, 257660, 314147, 515320, 628294, 1256588, 1570735, 2513176, 3141470, 4083911, 6282940, 8167822, 12565880, 16335644, 20419555, 32671288, 40839110, 81678220, 163356440]

約数ペア:

[(1, 163356440), (2, 81678220), (4, 40839110), (5, 32671288), (8, 20419555), (10, 16335644), (13, 12565880), (20, 8167822), (26, 6282940), (40, 4083911), (52, 3141470), (65, 2513176), (104, 1570735), (130, 1256588), (260, 628294), (317, 515320), (520, 314147), (634, 257660), (991, 164840), (1268, 128830), (1585, 103064), (1982, 82420), (2536, 64415), (3170, 51532), (3964, 41210), (4121, 39640), (4955, 32968), (6340, 25766), (7928, 20605), (8242, 19820), (9910, 16484), (12680, 12883)]