18371920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:692

約数の個数: 80

約数和(自身を含む): 49818240

約数和(自身を除く): 31446320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 619, 742, 848, 1060, 1238, 1484, 1855, 2120, 2476, 2968, 3095, 3710, 4240, 4333, 4952, 5936, 6190, 7420, 8666, 9904, 12380, 14840, 17332, 21665, 24760, 29680, 32807, 34664, 43330, 49520, 65614, 69328, 86660, 131228, 164035, 173320, 229649, 262456, 328070, 346640, 459298, 524912, 656140, 918596, 1148245, 1312280, 1837192, 2296490, 2624560, 3674384, 4592980, 9185960, 18371920]

約数ペア:

[(1, 18371920), (2, 9185960), (4, 4592980), (5, 3674384), (7, 2624560), (8, 2296490), (10, 1837192), (14, 1312280), (16, 1148245), (20, 918596), (28, 656140), (35, 524912), (40, 459298), (53, 346640), (56, 328070), (70, 262456), (80, 229649), (106, 173320), (112, 164035), (140, 131228), (212, 86660), (265, 69328), (280, 65614), (371, 49520), (424, 43330), (530, 34664), (560, 32807), (619, 29680), (742, 24760), (848, 21665), (1060, 17332), (1238, 14840), (1484, 12380), (1855, 9904), (2120, 8666), (2476, 7420), (2968, 6190), (3095, 5936), (3710, 4952), (4240, 4333)]