31073640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19919}}^1$

素因数の和:19946

約数の個数: 64

約数和(自身を含む): 100396800

約数和(自身を除く): 69323160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 19919, 39838, 59757, 79676, 99595, 119514, 159352, 199190, 239028, 258947, 298785, 398380, 478056, 517894, 597570, 776841, 796760, 1035788, 1195140, 1294735, 1553682, 2071576, 2390280, 2589470, 3107364, 3884205, 5178940, 6214728, 7768410, 10357880, 15536820, 31073640]

約数ペア:

[(1, 31073640), (2, 15536820), (3, 10357880), (4, 7768410), (5, 6214728), (6, 5178940), (8, 3884205), (10, 3107364), (12, 2589470), (13, 2390280), (15, 2071576), (20, 1553682), (24, 1294735), (26, 1195140), (30, 1035788), (39, 796760), (40, 776841), (52, 597570), (60, 517894), (65, 478056), (78, 398380), (104, 298785), (120, 258947), (130, 239028), (156, 199190), (195, 159352), (260, 119514), (312, 99595), (390, 79676), (520, 59757), (780, 39838), (1560, 19919)]