18756660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 57294720

約数和(自身を除く): 38538060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 139, 156, 173, 195, 260, 278, 346, 390, 417, 519, 556, 692, 695, 780, 834, 865, 1038, 1390, 1668, 1730, 1807, 2076, 2085, 2249, 2595, 2780, 3460, 3614, 4170, 4498, 5190, 5421, 6747, 7228, 8340, 8996, 9035, 10380, 10842, 11245, 13494, 18070, 21684, 22490, 24047, 26988, 27105, 33735, 36140, 44980, 48094, 54210, 67470, 72141, 96188, 108420, 120235, 134940, 144282, 240470, 288564, 312611, 360705, 480940, 625222, 721410, 937833, 1250444, 1442820, 1563055, 1875666, 3126110, 3751332, 4689165, 6252220, 9378330, 18756660]

約数ペア:

[(1, 18756660), (2, 9378330), (3, 6252220), (4, 4689165), (5, 3751332), (6, 3126110), (10, 1875666), (12, 1563055), (13, 1442820), (15, 1250444), (20, 937833), (26, 721410), (30, 625222), (39, 480940), (52, 360705), (60, 312611), (65, 288564), (78, 240470), (130, 144282), (139, 134940), (156, 120235), (173, 108420), (195, 96188), (260, 72141), (278, 67470), (346, 54210), (390, 48094), (417, 44980), (519, 36140), (556, 33735), (692, 27105), (695, 26988), (780, 24047), (834, 22490), (865, 21684), (1038, 18070), (1390, 13494), (1668, 11245), (1730, 10842), (1807, 10380), (2076, 9035), (2085, 8996), (2249, 8340), (2595, 7228), (2780, 6747), (3460, 5421), (3614, 5190), (4170, 4498)]