251337420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1409}}^1$

素因数の和:2415

約数の個数: 72

約数和(自身を含む): 763701120

約数和(自身を除く): 512363700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 991, 1409, 1982, 2818, 2973, 3964, 4227, 4955, 5636, 5946, 7045, 8454, 8919, 9910, 11892, 12681, 14090, 14865, 16908, 17838, 19820, 21135, 25362, 28180, 29730, 35676, 42270, 44595, 50724, 59460, 63405, 84540, 89190, 126810, 178380, 253620, 1396319, 2792638, 4188957, 5585276, 6981595, 8377914, 12566871, 13963190, 16755828, 20944785, 25133742, 27926380, 41889570, 50267484, 62834355, 83779140, 125668710, 251337420]

約数ペア:

[(1, 251337420), (2, 125668710), (3, 83779140), (4, 62834355), (5, 50267484), (6, 41889570), (9, 27926380), (10, 25133742), (12, 20944785), (15, 16755828), (18, 13963190), (20, 12566871), (30, 8377914), (36, 6981595), (45, 5585276), (60, 4188957), (90, 2792638), (180, 1396319), (991, 253620), (1409, 178380), (1982, 126810), (2818, 89190), (2973, 84540), (3964, 63405), (4227, 59460), (4955, 50724), (5636, 44595), (5946, 42270), (7045, 35676), (8454, 29730), (8919, 28180), (9910, 25362), (11892, 21135), (12681, 19820), (14090, 17838), (14865, 16908)]