81604770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2521}}^1$

素因数の和:2627

約数の個数: 64

約数和(自身を含む): 213542784

約数和(自身を除く): 131938014

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 83, 130, 166, 195, 249, 390, 415, 498, 830, 1079, 1245, 2158, 2490, 2521, 3237, 5042, 5395, 6474, 7563, 10790, 12605, 15126, 16185, 25210, 32370, 32773, 37815, 65546, 75630, 98319, 163865, 196638, 209243, 327730, 418486, 491595, 627729, 983190, 1046215, 1255458, 2092430, 2720159, 3138645, 5440318, 6277290, 8160477, 13600795, 16320954, 27201590, 40802385, 81604770]

約数ペア:

[(1, 81604770), (2, 40802385), (3, 27201590), (5, 16320954), (6, 13600795), (10, 8160477), (13, 6277290), (15, 5440318), (26, 3138645), (30, 2720159), (39, 2092430), (65, 1255458), (78, 1046215), (83, 983190), (130, 627729), (166, 491595), (195, 418486), (249, 327730), (390, 209243), (415, 196638), (498, 163865), (830, 98319), (1079, 75630), (1245, 65546), (2158, 37815), (2490, 32773), (2521, 32370), (3237, 25210), (5042, 16185), (5395, 15126), (6474, 12605), (7563, 10790)]