13806920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 33652800

約数和(自身を除く): 19845880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 491, 703, 740, 760, 982, 1406, 1480, 1964, 2455, 2812, 3515, 3928, 4910, 5624, 7030, 9329, 9820, 14060, 18167, 18658, 19640, 28120, 36334, 37316, 46645, 72668, 74632, 90835, 93290, 145336, 181670, 186580, 345173, 363340, 373160, 690346, 726680, 1380692, 1725865, 2761384, 3451730, 6903460, 13806920]

約数ペア:

[(1, 13806920), (2, 6903460), (4, 3451730), (5, 2761384), (8, 1725865), (10, 1380692), (19, 726680), (20, 690346), (37, 373160), (38, 363340), (40, 345173), (74, 186580), (76, 181670), (95, 145336), (148, 93290), (152, 90835), (185, 74632), (190, 72668), (296, 46645), (370, 37316), (380, 36334), (491, 28120), (703, 19640), (740, 18658), (760, 18167), (982, 14060), (1406, 9820), (1480, 9329), (1964, 7030), (2455, 5624), (2812, 4910), (3515, 3928)]