345766540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{389}}^1\times {\mathrm{907}}^1$

素因数の和:1319

約数の個数: 72

約数和(自身を含む): 847763280

約数和(自身を除く): 501996740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 389, 490, 778, 907, 980, 1556, 1814, 1945, 2723, 3628, 3890, 4535, 5446, 6349, 7780, 9070, 10892, 12698, 13615, 18140, 19061, 25396, 27230, 31745, 38122, 44443, 54460, 63490, 76244, 88886, 95305, 126980, 177772, 190610, 222215, 352823, 381220, 444430, 705646, 888860, 1411292, 1764115, 2469761, 3528230, 4939522, 7056460, 9879044, 12348805, 17288327, 24697610, 34576654, 49395220, 69153308, 86441635, 172883270, 345766540]

約数ペア:

[(1, 345766540), (2, 172883270), (4, 86441635), (5, 69153308), (7, 49395220), (10, 34576654), (14, 24697610), (20, 17288327), (28, 12348805), (35, 9879044), (49, 7056460), (70, 4939522), (98, 3528230), (140, 2469761), (196, 1764115), (245, 1411292), (389, 888860), (490, 705646), (778, 444430), (907, 381220), (980, 352823), (1556, 222215), (1814, 190610), (1945, 177772), (2723, 126980), (3628, 95305), (3890, 88886), (4535, 76244), (5446, 63490), (6349, 54460), (7780, 44443), (9070, 38122), (10892, 31745), (12698, 27230), (13615, 25396), (18140, 19061)]