28018140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 83220480

約数和(自身を除く): 55202340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 79, 92, 115, 138, 158, 230, 237, 257, 276, 316, 345, 395, 460, 474, 514, 690, 771, 790, 948, 1028, 1185, 1285, 1380, 1542, 1580, 1817, 2370, 2570, 3084, 3634, 3855, 4740, 5140, 5451, 5911, 7268, 7710, 9085, 10902, 11822, 15420, 17733, 18170, 20303, 21804, 23644, 27255, 29555, 35466, 36340, 40606, 54510, 59110, 60909, 70932, 81212, 88665, 101515, 109020, 118220, 121818, 177330, 203030, 243636, 304545, 354660, 406060, 466969, 609090, 933938, 1218180, 1400907, 1867876, 2334845, 2801814, 4669690, 5603628, 7004535, 9339380, 14009070, 28018140]

約数ペア:

[(1, 28018140), (2, 14009070), (3, 9339380), (4, 7004535), (5, 5603628), (6, 4669690), (10, 2801814), (12, 2334845), (15, 1867876), (20, 1400907), (23, 1218180), (30, 933938), (46, 609090), (60, 466969), (69, 406060), (79, 354660), (92, 304545), (115, 243636), (138, 203030), (158, 177330), (230, 121818), (237, 118220), (257, 109020), (276, 101515), (316, 88665), (345, 81212), (395, 70932), (460, 60909), (474, 59110), (514, 54510), (690, 40606), (771, 36340), (790, 35466), (948, 29555), (1028, 27255), (1185, 23644), (1285, 21804), (1380, 20303), (1542, 18170), (1580, 17733), (1817, 15420), (2370, 11822), (2570, 10902), (3084, 9085), (3634, 7710), (3855, 7268), (4740, 5911), (5140, 5451)]