20214950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 72

約数和(自身を含む): 45122112

約数和(自身を除く): 24907162

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 37, 49, 50, 70, 74, 98, 175, 185, 223, 245, 259, 350, 370, 446, 490, 518, 925, 1115, 1225, 1295, 1561, 1813, 1850, 2230, 2450, 2590, 3122, 3626, 5575, 6475, 7805, 8251, 9065, 10927, 11150, 12950, 15610, 16502, 18130, 21854, 39025, 41255, 45325, 54635, 57757, 78050, 82510, 90650, 109270, 115514, 206275, 273175, 288785, 404299, 412550, 546350, 577570, 808598, 1443925, 2021495, 2887850, 4042990, 10107475, 20214950]

約数ペア:

[(1, 20214950), (2, 10107475), (5, 4042990), (7, 2887850), (10, 2021495), (14, 1443925), (25, 808598), (35, 577570), (37, 546350), (49, 412550), (50, 404299), (70, 288785), (74, 273175), (98, 206275), (175, 115514), (185, 109270), (223, 90650), (245, 82510), (259, 78050), (350, 57757), (370, 54635), (446, 45325), (490, 41255), (518, 39025), (925, 21854), (1115, 18130), (1225, 16502), (1295, 15610), (1561, 12950), (1813, 11150), (1850, 10927), (2230, 9065), (2450, 8251), (2590, 7805), (3122, 6475), (3626, 5575)]