19909170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1409}}^1$

素因数の和:1579

約数の個数: 48

約数和(自身を含む): 52130520

約数和(自身を除く): 32221350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1409, 1413, 1570, 2355, 2818, 2826, 4227, 4710, 7045, 7065, 8454, 12681, 14090, 14130, 21135, 25362, 42270, 63405, 126810, 221213, 442426, 663639, 1106065, 1327278, 1990917, 2212130, 3318195, 3981834, 6636390, 9954585, 19909170]

約数ペア:

[(1, 19909170), (2, 9954585), (3, 6636390), (5, 3981834), (6, 3318195), (9, 2212130), (10, 1990917), (15, 1327278), (18, 1106065), (30, 663639), (45, 442426), (90, 221213), (157, 126810), (314, 63405), (471, 42270), (785, 25362), (942, 21135), (1409, 14130), (1413, 14090), (1570, 12681), (2355, 8454), (2818, 7065), (2826, 7045), (4227, 4710)]