21800220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1515

約数の個数: 96

約数和(自身を含む): 69242880

約数和(自身を除く): 47442660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1471, 1482, 2470, 2942, 2964, 3705, 4413, 4940, 5884, 7355, 7410, 8826, 14710, 14820, 17652, 19123, 22065, 27949, 29420, 38246, 44130, 55898, 57369, 76492, 83847, 88260, 95615, 111796, 114738, 139745, 167694, 191230, 229476, 279490, 286845, 335388, 363337, 382460, 419235, 558980, 573690, 726674, 838470, 1090011, 1147380, 1453348, 1676940, 1816685, 2180022, 3633370, 4360044, 5450055, 7266740, 10900110, 21800220]

約数ペア:

[(1, 21800220), (2, 10900110), (3, 7266740), (4, 5450055), (5, 4360044), (6, 3633370), (10, 2180022), (12, 1816685), (13, 1676940), (15, 1453348), (19, 1147380), (20, 1090011), (26, 838470), (30, 726674), (38, 573690), (39, 558980), (52, 419235), (57, 382460), (60, 363337), (65, 335388), (76, 286845), (78, 279490), (95, 229476), (114, 191230), (130, 167694), (156, 139745), (190, 114738), (195, 111796), (228, 95615), (247, 88260), (260, 83847), (285, 76492), (380, 57369), (390, 55898), (494, 44130), (570, 38246), (741, 29420), (780, 27949), (988, 22065), (1140, 19123), (1235, 17652), (1471, 14820), (1482, 14710), (2470, 8826), (2942, 7410), (2964, 7355), (3705, 5884), (4413, 4940)]