42912980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1489}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 99126720

約数和(自身を除く): 56213740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 1310, 1441, 1489, 2620, 2882, 2978, 5764, 5956, 7205, 7445, 14410, 14890, 16379, 28820, 29780, 32758, 65516, 81895, 163790, 195059, 327580, 390118, 780236, 975295, 1950590, 2145649, 3901180, 4291298, 8582596, 10728245, 21456490, 42912980]

約数ペア:

[(1, 42912980), (2, 21456490), (4, 10728245), (5, 8582596), (10, 4291298), (11, 3901180), (20, 2145649), (22, 1950590), (44, 975295), (55, 780236), (110, 390118), (131, 327580), (220, 195059), (262, 163790), (524, 81895), (655, 65516), (1310, 32758), (1441, 29780), (1489, 28820), (2620, 16379), (2882, 14890), (2978, 14410), (5764, 7445), (5956, 7205)]