64829680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26141}}^1$

素因数の和:26185

約数の個数: 40

約数和(自身を含む): 155597184

約数和(自身を除く): 90767504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26141, 52282, 104564, 130705, 209128, 261410, 418256, 522820, 810371, 1045640, 1620742, 2091280, 3241484, 4051855, 6482968, 8103710, 12965936, 16207420, 32414840, 64829680]

約数ペア:

[(1, 64829680), (2, 32414840), (4, 16207420), (5, 12965936), (8, 8103710), (10, 6482968), (16, 4051855), (20, 3241484), (31, 2091280), (40, 1620742), (62, 1045640), (80, 810371), (124, 522820), (155, 418256), (248, 261410), (310, 209128), (496, 130705), (620, 104564), (1240, 52282), (2480, 26141)]