198702920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1811}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 484021440

約数和(自身を除く): 285318520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 211, 260, 422, 520, 844, 1055, 1688, 1811, 2110, 2743, 3622, 4220, 5486, 7244, 8440, 9055, 10972, 13715, 14488, 18110, 21944, 23543, 27430, 36220, 47086, 54860, 72440, 94172, 109720, 117715, 188344, 235430, 382121, 470860, 764242, 941720, 1528484, 1910605, 3056968, 3821210, 4967573, 7642420, 9935146, 15284840, 19870292, 24837865, 39740584, 49675730, 99351460, 198702920]

約数ペア:

[(1, 198702920), (2, 99351460), (4, 49675730), (5, 39740584), (8, 24837865), (10, 19870292), (13, 15284840), (20, 9935146), (26, 7642420), (40, 4967573), (52, 3821210), (65, 3056968), (104, 1910605), (130, 1528484), (211, 941720), (260, 764242), (422, 470860), (520, 382121), (844, 235430), (1055, 188344), (1688, 117715), (1811, 109720), (2110, 94172), (2743, 72440), (3622, 54860), (4220, 47086), (5486, 36220), (7244, 27430), (8440, 23543), (9055, 21944), (10972, 18110), (13715, 14488)]