12707420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 30164400

約数和(自身を除く): 17456980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 89, 110, 118, 121, 178, 220, 236, 242, 295, 356, 445, 484, 590, 605, 649, 890, 979, 1180, 1210, 1298, 1780, 1958, 2420, 2596, 3245, 3916, 4895, 5251, 6490, 7139, 9790, 10502, 10769, 12980, 14278, 19580, 21004, 21538, 26255, 28556, 35695, 43076, 52510, 53845, 57761, 71390, 105020, 107690, 115522, 142780, 215380, 231044, 288805, 577610, 635371, 1155220, 1270742, 2541484, 3176855, 6353710, 12707420]

約数ペア:

[(1, 12707420), (2, 6353710), (4, 3176855), (5, 2541484), (10, 1270742), (11, 1155220), (20, 635371), (22, 577610), (44, 288805), (55, 231044), (59, 215380), (89, 142780), (110, 115522), (118, 107690), (121, 105020), (178, 71390), (220, 57761), (236, 53845), (242, 52510), (295, 43076), (356, 35695), (445, 28556), (484, 26255), (590, 21538), (605, 21004), (649, 19580), (890, 14278), (979, 12980), (1180, 10769), (1210, 10502), (1298, 9790), (1780, 7139), (1958, 6490), (2420, 5251), (2596, 4895), (3245, 3916)]