203399180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{2221}}^1$

素因数の和:2490

約数の個数: 48

約数和(自身を含む): 451688160

約数和(自身を除く): 248288980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 482, 964, 1205, 2221, 2410, 4442, 4579, 4820, 8884, 9158, 11105, 18316, 22210, 22895, 42199, 44420, 45790, 84398, 91580, 168796, 210995, 421990, 535261, 843980, 1070522, 2141044, 2676305, 5352610, 10169959, 10705220, 20339918, 40679836, 50849795, 101699590, 203399180]

約数ペア:

[(1, 203399180), (2, 101699590), (4, 50849795), (5, 40679836), (10, 20339918), (19, 10705220), (20, 10169959), (38, 5352610), (76, 2676305), (95, 2141044), (190, 1070522), (241, 843980), (380, 535261), (482, 421990), (964, 210995), (1205, 168796), (2221, 91580), (2410, 84398), (4442, 45790), (4579, 44420), (4820, 42199), (8884, 22895), (9158, 22210), (11105, 18316)]