22188980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 52486056

約数和(自身を除く): 30297076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 121, 173, 212, 220, 242, 265, 346, 484, 530, 583, 605, 692, 865, 1060, 1166, 1210, 1730, 1903, 2332, 2420, 2915, 3460, 3806, 5830, 6413, 7612, 9169, 9515, 11660, 12826, 18338, 19030, 20933, 25652, 32065, 36676, 38060, 41866, 45845, 64130, 83732, 91690, 100859, 104665, 128260, 183380, 201718, 209330, 403436, 418660, 504295, 1008590, 1109449, 2017180, 2218898, 4437796, 5547245, 11094490, 22188980]

約数ペア:

[(1, 22188980), (2, 11094490), (4, 5547245), (5, 4437796), (10, 2218898), (11, 2017180), (20, 1109449), (22, 1008590), (44, 504295), (53, 418660), (55, 403436), (106, 209330), (110, 201718), (121, 183380), (173, 128260), (212, 104665), (220, 100859), (242, 91690), (265, 83732), (346, 64130), (484, 45845), (530, 41866), (583, 38060), (605, 36676), (692, 32065), (865, 25652), (1060, 20933), (1166, 19030), (1210, 18338), (1730, 12826), (1903, 11660), (2332, 9515), (2420, 9169), (2915, 7612), (3460, 6413), (3806, 5830)]