201919540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{1481}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 450397584

約数和(自身を除く): 248478044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 401, 802, 1481, 1604, 2005, 2962, 4010, 5924, 6817, 7405, 8020, 13634, 14810, 25177, 27268, 29620, 34085, 50354, 68170, 100708, 125885, 136340, 251770, 503540, 593881, 1187762, 2375524, 2969405, 5938810, 10095977, 11877620, 20191954, 40383908, 50479885, 100959770, 201919540]

約数ペア:

[(1, 201919540), (2, 100959770), (4, 50479885), (5, 40383908), (10, 20191954), (17, 11877620), (20, 10095977), (34, 5938810), (68, 2969405), (85, 2375524), (170, 1187762), (340, 593881), (401, 503540), (802, 251770), (1481, 136340), (1604, 125885), (2005, 100708), (2962, 68170), (4010, 50354), (5924, 34085), (6817, 29620), (7405, 27268), (8020, 25177), (13634, 14810)]