81307980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34747}}^1$

素因数の和:34775

約数の個数: 72

約数和(自身を含む): 265613712

約数和(自身を除く): 184305732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34747, 69494, 104241, 138988, 173735, 208482, 312723, 347470, 416964, 451711, 521205, 625446, 694940, 903422, 1042410, 1250892, 1355133, 1563615, 1806844, 2084820, 2258555, 2710266, 3127230, 4065399, 4517110, 5420532, 6254460, 6775665, 8130798, 9034220, 13551330, 16261596, 20326995, 27102660, 40653990, 81307980]

約数ペア:

[(1, 81307980), (2, 40653990), (3, 27102660), (4, 20326995), (5, 16261596), (6, 13551330), (9, 9034220), (10, 8130798), (12, 6775665), (13, 6254460), (15, 5420532), (18, 4517110), (20, 4065399), (26, 3127230), (30, 2710266), (36, 2258555), (39, 2084820), (45, 1806844), (52, 1563615), (60, 1355133), (65, 1250892), (78, 1042410), (90, 903422), (117, 694940), (130, 625446), (156, 521205), (180, 451711), (195, 416964), (234, 347470), (260, 312723), (390, 208482), (468, 173735), (585, 138988), (780, 104241), (1170, 69494), (2340, 34747)]