28138778878

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1\times {\mathrm{1061}}^1$

素因数の和:1825

約数の個数: 64

約数和(自身を含む): 51200294400

約数和(自身を除く): 23061515522

約数列:

[1, 2, 7, 14, 19, 38, 133, 179, 266, 358, 557, 1061, 1114, 1253, 2122, 2506, 3401, 3899, 6802, 7427, 7798, 10583, 14854, 20159, 21166, 23807, 40318, 47614, 74081, 99703, 141113, 148162, 189919, 199406, 282226, 379838, 590977, 697921, 1181954, 1329433, 1395842, 1894357, 2658866, 3608461, 3788714, 4136839, 7216922, 8273678, 11228563, 13260499, 22457126, 25259227, 26520998, 50518454, 78599941, 105784883, 157199882, 211569766, 740494181, 1480988362, 2009912777, 4019825554, 14069389439, 28138778878]

約数ペア:

[(1, 28138778878), (2, 14069389439), (7, 4019825554), (14, 2009912777), (19, 1480988362), (38, 740494181), (133, 211569766), (179, 157199882), (266, 105784883), (358, 78599941), (557, 50518454), (1061, 26520998), (1114, 25259227), (1253, 22457126), (2122, 13260499), (2506, 11228563), (3401, 8273678), (3899, 7216922), (6802, 4136839), (7427, 3788714), (7798, 3608461), (10583, 2658866), (14854, 1894357), (20159, 1395842), (21166, 1329433), (23807, 1181954), (40318, 697921), (47614, 590977), (74081, 379838), (99703, 282226), (141113, 199406), (148162, 189919)]