81346790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1973}}^1$

素因数の和:2037

約数の個数: 64

約数和(自身を含む): 181923840

約数和(自身を除く): 100577050

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 190, 217, 266, 310, 434, 589, 665, 1085, 1178, 1330, 1973, 2170, 2945, 3946, 4123, 5890, 8246, 9865, 13811, 19730, 20615, 27622, 37487, 41230, 61163, 69055, 74974, 122326, 138110, 187435, 262409, 305815, 374870, 428141, 524818, 611630, 856282, 1162097, 1312045, 2140705, 2324194, 2624090, 4281410, 5810485, 8134679, 11620970, 16269358, 40673395, 81346790]

約数ペア:

[(1, 81346790), (2, 40673395), (5, 16269358), (7, 11620970), (10, 8134679), (14, 5810485), (19, 4281410), (31, 2624090), (35, 2324194), (38, 2140705), (62, 1312045), (70, 1162097), (95, 856282), (133, 611630), (155, 524818), (190, 428141), (217, 374870), (266, 305815), (310, 262409), (434, 187435), (589, 138110), (665, 122326), (1085, 74974), (1178, 69055), (1330, 61163), (1973, 41230), (2170, 37487), (2945, 27622), (3946, 20615), (4123, 19730), (5890, 13811), (8246, 9865)]