28407950

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 55111056

約数和(自身を除く): 26703106

約数列:

[1, 2, 5, 10, 25, 43, 50, 73, 86, 146, 181, 215, 362, 365, 430, 730, 905, 1075, 1810, 1825, 2150, 3139, 3650, 4525, 6278, 7783, 9050, 13213, 15566, 15695, 26426, 31390, 38915, 66065, 77830, 78475, 132130, 156950, 194575, 330325, 389150, 568159, 660650, 1136318, 2840795, 5681590, 14203975, 28407950]

約数ペア:

[(1, 28407950), (2, 14203975), (5, 5681590), (10, 2840795), (25, 1136318), (43, 660650), (50, 568159), (73, 389150), (86, 330325), (146, 194575), (181, 156950), (215, 132130), (362, 78475), (365, 77830), (430, 66065), (730, 38915), (905, 31390), (1075, 26426), (1810, 15695), (1825, 15566), (2150, 13213), (3139, 9050), (3650, 7783), (4525, 6278)]