2799940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 7038360

約数和(自身を除く): 4238420

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 89, 110, 121, 130, 143, 178, 220, 242, 260, 286, 356, 445, 484, 572, 605, 715, 890, 979, 1157, 1210, 1430, 1573, 1780, 1958, 2314, 2420, 2860, 3146, 3916, 4628, 4895, 5785, 6292, 7865, 9790, 10769, 11570, 12727, 15730, 19580, 21538, 23140, 25454, 31460, 43076, 50908, 53845, 63635, 107690, 127270, 139997, 215380, 254540, 279994, 559988, 699985, 1399970, 2799940]

約数ペア:

[(1, 2799940), (2, 1399970), (4, 699985), (5, 559988), (10, 279994), (11, 254540), (13, 215380), (20, 139997), (22, 127270), (26, 107690), (44, 63635), (52, 53845), (55, 50908), (65, 43076), (89, 31460), (110, 25454), (121, 23140), (130, 21538), (143, 19580), (178, 15730), (220, 12727), (242, 11570), (260, 10769), (286, 9790), (356, 7865), (445, 6292), (484, 5785), (572, 4895), (605, 4628), (715, 3916), (890, 3146), (979, 2860), (1157, 2420), (1210, 2314), (1430, 1958), (1573, 1780)]