81018990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69247}}^1$

素因数の和:69273

約数の個数: 48

約数和(自身を含む): 226856448

約数和(自身を除く): 145837458

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 69247, 138494, 207741, 346235, 415482, 623223, 692470, 900211, 1038705, 1246446, 1800422, 2077410, 2700633, 3116115, 4501055, 5401266, 6232230, 8101899, 9002110, 13503165, 16203798, 27006330, 40509495, 81018990]

約数ペア:

[(1, 81018990), (2, 40509495), (3, 27006330), (5, 16203798), (6, 13503165), (9, 9002110), (10, 8101899), (13, 6232230), (15, 5401266), (18, 4501055), (26, 3116115), (30, 2700633), (39, 2077410), (45, 1800422), (65, 1246446), (78, 1038705), (90, 900211), (117, 692470), (130, 623223), (195, 415482), (234, 346235), (390, 207741), (585, 138494), (1170, 69247)]