20995950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 56246400

約数和(自身を除く): 35250450

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 53, 57, 75, 95, 106, 114, 139, 150, 159, 190, 265, 278, 285, 318, 417, 475, 530, 570, 695, 795, 834, 950, 1007, 1325, 1390, 1425, 1590, 2014, 2085, 2641, 2650, 2850, 3021, 3475, 3975, 4170, 5035, 5282, 6042, 6950, 7367, 7923, 7950, 10070, 10425, 13205, 14734, 15105, 15846, 20850, 22101, 25175, 26410, 30210, 36835, 39615, 44202, 50350, 66025, 73670, 75525, 79230, 110505, 132050, 139973, 151050, 184175, 198075, 221010, 279946, 368350, 396150, 419919, 552525, 699865, 839838, 1105050, 1399730, 2099595, 3499325, 4199190, 6998650, 10497975, 20995950]

約数ペア:

[(1, 20995950), (2, 10497975), (3, 6998650), (5, 4199190), (6, 3499325), (10, 2099595), (15, 1399730), (19, 1105050), (25, 839838), (30, 699865), (38, 552525), (50, 419919), (53, 396150), (57, 368350), (75, 279946), (95, 221010), (106, 198075), (114, 184175), (139, 151050), (150, 139973), (159, 132050), (190, 110505), (265, 79230), (278, 75525), (285, 73670), (318, 66025), (417, 50350), (475, 44202), (530, 39615), (570, 36835), (695, 30210), (795, 26410), (834, 25175), (950, 22101), (1007, 20850), (1325, 15846), (1390, 15105), (1425, 14734), (1590, 13205), (2014, 10425), (2085, 10070), (2641, 7950), (2650, 7923), (2850, 7367), (3021, 6950), (3475, 6042), (3975, 5282), (4170, 5035)]