31204940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{467}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 70997472

約数和(自身を除く): 39792532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 467, 514, 934, 1028, 1285, 1868, 2335, 2570, 3341, 4670, 5140, 6071, 6682, 9340, 12142, 13364, 16705, 24284, 30355, 33410, 60710, 66820, 120019, 121420, 240038, 480076, 600095, 1200190, 1560247, 2400380, 3120494, 6240988, 7801235, 15602470, 31204940]

約数ペア:

[(1, 31204940), (2, 15602470), (4, 7801235), (5, 6240988), (10, 3120494), (13, 2400380), (20, 1560247), (26, 1200190), (52, 600095), (65, 480076), (130, 240038), (257, 121420), (260, 120019), (467, 66820), (514, 60710), (934, 33410), (1028, 30355), (1285, 24284), (1868, 16705), (2335, 13364), (2570, 12142), (3341, 9340), (4670, 6682), (5140, 6071)]