20815381680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{48157}}^1$

素因数の和:49974

約数の個数: 80

約数和(自身を含む): 64564852704

約数和(自身を除く): 43749471024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1801, 3602, 5403, 7204, 9005, 10806, 14408, 18010, 21612, 27015, 28816, 36020, 43224, 48157, 54030, 72040, 86448, 96314, 108060, 144080, 144471, 192628, 216120, 240785, 288942, 385256, 432240, 481570, 577884, 722355, 770512, 963140, 1155768, 1444710, 1926280, 2311536, 2889420, 3852560, 5778840, 11557680, 86730757, 173461514, 260192271, 346923028, 433653785, 520384542, 693846056, 867307570, 1040769084, 1300961355, 1387692112, 1734615140, 2081538168, 2601922710, 3469230280, 4163076336, 5203845420, 6938460560, 10407690840, 20815381680]

約数ペア:

[(1, 20815381680), (2, 10407690840), (3, 6938460560), (4, 5203845420), (5, 4163076336), (6, 3469230280), (8, 2601922710), (10, 2081538168), (12, 1734615140), (15, 1387692112), (16, 1300961355), (20, 1040769084), (24, 867307570), (30, 693846056), (40, 520384542), (48, 433653785), (60, 346923028), (80, 260192271), (120, 173461514), (240, 86730757), (1801, 11557680), (3602, 5778840), (5403, 3852560), (7204, 2889420), (9005, 2311536), (10806, 1926280), (14408, 1444710), (18010, 1155768), (21612, 963140), (27015, 770512), (28816, 722355), (36020, 577884), (43224, 481570), (48157, 432240), (54030, 385256), (72040, 288942), (86448, 240785), (96314, 216120), (108060, 192628), (144080, 144471)]