15219380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 37091040

約数和(自身を除く): 21871660

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 331, 380, 418, 484, 605, 662, 836, 1045, 1210, 1324, 1655, 2090, 2299, 2420, 3310, 3641, 4180, 4598, 6289, 6620, 7282, 9196, 11495, 12578, 14564, 18205, 22990, 25156, 31445, 36410, 40051, 45980, 62890, 69179, 72820, 80102, 125780, 138358, 160204, 200255, 276716, 345895, 400510, 691790, 760969, 801020, 1383580, 1521938, 3043876, 3804845, 7609690, 15219380]

約数ペア:

[(1, 15219380), (2, 7609690), (4, 3804845), (5, 3043876), (10, 1521938), (11, 1383580), (19, 801020), (20, 760969), (22, 691790), (38, 400510), (44, 345895), (55, 276716), (76, 200255), (95, 160204), (110, 138358), (121, 125780), (190, 80102), (209, 72820), (220, 69179), (242, 62890), (331, 45980), (380, 40051), (418, 36410), (484, 31445), (605, 25156), (662, 22990), (836, 18205), (1045, 14564), (1210, 12578), (1324, 11495), (1655, 9196), (2090, 7282), (2299, 6620), (2420, 6289), (3310, 4598), (3641, 4180)]