31118420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 68802048

約数和(自身を除く): 37683628

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 947, 1060, 1643, 1894, 3286, 3788, 4735, 6572, 8215, 9470, 16430, 18940, 29357, 32860, 50191, 58714, 100382, 117428, 146785, 200764, 250955, 293570, 501910, 587140, 1003820, 1555921, 3111842, 6223684, 7779605, 15559210, 31118420]

約数ペア:

[(1, 31118420), (2, 15559210), (4, 7779605), (5, 6223684), (10, 3111842), (20, 1555921), (31, 1003820), (53, 587140), (62, 501910), (106, 293570), (124, 250955), (155, 200764), (212, 146785), (265, 117428), (310, 100382), (530, 58714), (620, 50191), (947, 32860), (1060, 29357), (1643, 18940), (1894, 16430), (3286, 9470), (3788, 8215), (4735, 6572)]