72181840

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2939}}^1$

素因数の和:3259

約数の個数: 40

約数和(自身を含む): 168426720

約数和(自身を除く): 96244880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 2939, 3070, 4912, 5878, 6140, 11756, 12280, 14695, 23512, 24560, 29390, 47024, 58780, 117560, 235120, 902273, 1804546, 3609092, 4511365, 7218184, 9022730, 14436368, 18045460, 36090920, 72181840]

約数ペア:

[(1, 72181840), (2, 36090920), (4, 18045460), (5, 14436368), (8, 9022730), (10, 7218184), (16, 4511365), (20, 3609092), (40, 1804546), (80, 902273), (307, 235120), (614, 117560), (1228, 58780), (1535, 47024), (2456, 29390), (2939, 24560), (3070, 23512), (4912, 14695), (5878, 12280), (6140, 11756)]