71565975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 141501360

約数和(自身を除く): 69935385

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 43, 45, 65, 75, 117, 129, 195, 215, 225, 325, 387, 559, 569, 585, 645, 975, 1075, 1677, 1707, 1935, 2795, 2845, 2925, 3225, 5031, 5121, 7397, 8385, 8535, 9675, 13975, 14225, 22191, 24467, 25155, 25605, 36985, 41925, 42675, 66573, 73401, 110955, 122335, 125775, 128025, 184925, 220203, 318071, 332865, 367005, 554775, 611675, 954213, 1101015, 1590355, 1664325, 1835025, 2862639, 4771065, 5505075, 7951775, 14313195, 23855325, 71565975]

約数ペア:

[(1, 71565975), (3, 23855325), (5, 14313195), (9, 7951775), (13, 5505075), (15, 4771065), (25, 2862639), (39, 1835025), (43, 1664325), (45, 1590355), (65, 1101015), (75, 954213), (117, 611675), (129, 554775), (195, 367005), (215, 332865), (225, 318071), (325, 220203), (387, 184925), (559, 128025), (569, 125775), (585, 122335), (645, 110955), (975, 73401), (1075, 66573), (1677, 42675), (1707, 41925), (1935, 36985), (2795, 25605), (2845, 25155), (2925, 24467), (3225, 22191), (5031, 14225), (5121, 13975), (7397, 9675), (8385, 8535)]