890334280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:671

約数の個数: 128

約数和(自身を含む): 2261416320

約数和(自身を除く): 1371082040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 73, 88, 106, 110, 146, 212, 220, 265, 292, 365, 424, 440, 523, 530, 583, 584, 730, 803, 1046, 1060, 1166, 1460, 1606, 2092, 2120, 2332, 2615, 2915, 2920, 3212, 3869, 4015, 4184, 4664, 5230, 5753, 5830, 6424, 7738, 8030, 10460, 11506, 11660, 15476, 16060, 19345, 20920, 23012, 23320, 27719, 28765, 30952, 32120, 38179, 38690, 42559, 46024, 55438, 57530, 76358, 77380, 85118, 110876, 115060, 138595, 152716, 154760, 170236, 190895, 212795, 221752, 230120, 277190, 304909, 305432, 340472, 381790, 419969, 425590, 554380, 609818, 763580, 839938, 851180, 1108760, 1219636, 1524545, 1527160, 1679876, 1702360, 2023487, 2099845, 2439272, 3049090, 3359752, 4046974, 4199690, 6098180, 8093948, 8399380, 10117435, 12196360, 16187896, 16798760, 20234870, 22258357, 40469740, 44516714, 80939480, 89033428, 111291785, 178066856, 222583570, 445167140, 890334280]

約数ペア:

[(1, 890334280), (2, 445167140), (4, 222583570), (5, 178066856), (8, 111291785), (10, 89033428), (11, 80939480), (20, 44516714), (22, 40469740), (40, 22258357), (44, 20234870), (53, 16798760), (55, 16187896), (73, 12196360), (88, 10117435), (106, 8399380), (110, 8093948), (146, 6098180), (212, 4199690), (220, 4046974), (265, 3359752), (292, 3049090), (365, 2439272), (424, 2099845), (440, 2023487), (523, 1702360), (530, 1679876), (583, 1527160), (584, 1524545), (730, 1219636), (803, 1108760), (1046, 851180), (1060, 839938), (1166, 763580), (1460, 609818), (1606, 554380), (2092, 425590), (2120, 419969), (2332, 381790), (2615, 340472), (2915, 305432), (2920, 304909), (3212, 277190), (3869, 230120), (4015, 221752), (4184, 212795), (4664, 190895), (5230, 170236), (5753, 154760), (5830, 152716), (6424, 138595), (7738, 115060), (8030, 110876), (10460, 85118), (11506, 77380), (11660, 76358), (15476, 57530), (16060, 55438), (19345, 46024), (20920, 42559), (23012, 38690), (23320, 38179), (27719, 32120), (28765, 30952)]