90220190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^2$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 176498352

約数和(自身を除く): 86278162

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 89, 134, 170, 178, 335, 445, 670, 890, 1139, 1513, 2278, 3026, 5695, 5963, 7565, 7921, 11390, 11926, 15130, 15842, 29815, 39605, 59630, 79210, 101371, 134657, 202742, 269314, 506855, 530707, 673285, 1013710, 1061414, 1346570, 2653535, 5307070, 9022019, 18044038, 45110095, 90220190]

約数ペア:

[(1, 90220190), (2, 45110095), (5, 18044038), (10, 9022019), (17, 5307070), (34, 2653535), (67, 1346570), (85, 1061414), (89, 1013710), (134, 673285), (170, 530707), (178, 506855), (335, 269314), (445, 202742), (670, 134657), (890, 101371), (1139, 79210), (1513, 59630), (2278, 39605), (3026, 29815), (5695, 15842), (5963, 15130), (7565, 11926), (7921, 11390)]