13803880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 33566400

約数和(自身を除く): 19762520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 443, 760, 779, 820, 886, 1558, 1640, 1772, 2215, 3116, 3544, 3895, 4430, 6232, 7790, 8417, 8860, 15580, 16834, 17720, 18163, 31160, 33668, 36326, 42085, 67336, 72652, 84170, 90815, 145304, 168340, 181630, 336680, 345097, 363260, 690194, 726520, 1380388, 1725485, 2760776, 3450970, 6901940, 13803880]

約数ペア:

[(1, 13803880), (2, 6901940), (4, 3450970), (5, 2760776), (8, 1725485), (10, 1380388), (19, 726520), (20, 690194), (38, 363260), (40, 345097), (41, 336680), (76, 181630), (82, 168340), (95, 145304), (152, 90815), (164, 84170), (190, 72652), (205, 67336), (328, 42085), (380, 36326), (410, 33668), (443, 31160), (760, 18163), (779, 17720), (820, 16834), (886, 15580), (1558, 8860), (1640, 8417), (1772, 7790), (2215, 6232), (3116, 4430), (3544, 3895)]