222779020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 493465392

約数和(自身を除く): 270686372

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 173, 268, 310, 335, 346, 620, 670, 692, 865, 961, 1340, 1730, 1922, 2077, 3460, 3844, 4154, 4805, 5363, 8308, 9610, 10385, 10726, 11591, 19220, 20770, 21452, 23182, 26815, 41540, 46364, 53630, 57955, 64387, 107260, 115910, 128774, 166253, 231820, 257548, 321935, 332506, 359321, 643870, 665012, 718642, 831265, 1287740, 1437284, 1662530, 1796605, 3325060, 3593210, 7186420, 11138951, 22277902, 44555804, 55694755, 111389510, 222779020]

約数ペア:

[(1, 222779020), (2, 111389510), (4, 55694755), (5, 44555804), (10, 22277902), (20, 11138951), (31, 7186420), (62, 3593210), (67, 3325060), (124, 1796605), (134, 1662530), (155, 1437284), (173, 1287740), (268, 831265), (310, 718642), (335, 665012), (346, 643870), (620, 359321), (670, 332506), (692, 321935), (865, 257548), (961, 231820), (1340, 166253), (1730, 128774), (1922, 115910), (2077, 107260), (3460, 64387), (3844, 57955), (4154, 53630), (4805, 46364), (5363, 41540), (8308, 26815), (9610, 23182), (10385, 21452), (10726, 20770), (11591, 19220)]