20439960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2887}}^1$

素因数の和:2960

約数の個数: 64

約数和(自身を含む): 62380800

約数和(自身を除く): 41940840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 472, 590, 708, 885, 1180, 1416, 1770, 2360, 2887, 3540, 5774, 7080, 8661, 11548, 14435, 17322, 23096, 28870, 34644, 43305, 57740, 69288, 86610, 115480, 170333, 173220, 340666, 346440, 510999, 681332, 851665, 1021998, 1362664, 1703330, 2043996, 2554995, 3406660, 4087992, 5109990, 6813320, 10219980, 20439960]

約数ペア:

[(1, 20439960), (2, 10219980), (3, 6813320), (4, 5109990), (5, 4087992), (6, 3406660), (8, 2554995), (10, 2043996), (12, 1703330), (15, 1362664), (20, 1021998), (24, 851665), (30, 681332), (40, 510999), (59, 346440), (60, 340666), (118, 173220), (120, 170333), (177, 115480), (236, 86610), (295, 69288), (354, 57740), (472, 43305), (590, 34644), (708, 28870), (885, 23096), (1180, 17322), (1416, 14435), (1770, 11548), (2360, 8661), (2887, 7080), (3540, 5774)]