28156700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1$

素因数の和:228

約数の個数: 108

約数和(自身を含む): 72729720

約数和(自身を除く): 44573020

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 121, 130, 143, 179, 220, 242, 260, 275, 286, 325, 358, 484, 550, 572, 605, 650, 715, 716, 895, 1100, 1210, 1300, 1430, 1573, 1790, 1969, 2327, 2420, 2860, 3025, 3146, 3575, 3580, 3938, 4475, 4654, 6050, 6292, 7150, 7865, 7876, 8950, 9308, 9845, 11635, 12100, 14300, 15730, 17900, 19690, 21659, 23270, 25597, 31460, 39325, 39380, 43318, 46540, 49225, 51194, 58175, 78650, 86636, 98450, 102388, 108295, 116350, 127985, 157300, 196900, 216590, 232700, 255970, 281567, 433180, 511940, 541475, 563134, 639925, 1082950, 1126268, 1279850, 1407835, 2165900, 2559700, 2815670, 5631340, 7039175, 14078350, 28156700]

約数ペア:

[(1, 28156700), (2, 14078350), (4, 7039175), (5, 5631340), (10, 2815670), (11, 2559700), (13, 2165900), (20, 1407835), (22, 1279850), (25, 1126268), (26, 1082950), (44, 639925), (50, 563134), (52, 541475), (55, 511940), (65, 433180), (100, 281567), (110, 255970), (121, 232700), (130, 216590), (143, 196900), (179, 157300), (220, 127985), (242, 116350), (260, 108295), (275, 102388), (286, 98450), (325, 86636), (358, 78650), (484, 58175), (550, 51194), (572, 49225), (605, 46540), (650, 43318), (715, 39380), (716, 39325), (895, 31460), (1100, 25597), (1210, 23270), (1300, 21659), (1430, 19690), (1573, 17900), (1790, 15730), (1969, 14300), (2327, 12100), (2420, 11635), (2860, 9845), (3025, 9308), (3146, 8950), (3575, 7876), (3580, 7865), (3938, 7150), (4475, 6292), (4654, 6050)]