1297140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 3913728

約数和(自身を除く): 2616588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1663, 3326, 4989, 6652, 8315, 9978, 16630, 19956, 21619, 24945, 33260, 43238, 49890, 64857, 86476, 99780, 108095, 129714, 216190, 259428, 324285, 432380, 648570, 1297140]

約数ペア:

[(1, 1297140), (2, 648570), (3, 432380), (4, 324285), (5, 259428), (6, 216190), (10, 129714), (12, 108095), (13, 99780), (15, 86476), (20, 64857), (26, 49890), (30, 43238), (39, 33260), (52, 24945), (60, 21619), (65, 19956), (78, 16630), (130, 9978), (156, 8315), (195, 6652), (260, 4989), (390, 3326), (780, 1663)]