202920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 648000

約数和(自身を除く): 445080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 89, 95, 114, 120, 152, 178, 190, 228, 267, 285, 356, 380, 445, 456, 534, 570, 712, 760, 890, 1068, 1140, 1335, 1691, 1780, 2136, 2280, 2670, 3382, 3560, 5073, 5340, 6764, 8455, 10146, 10680, 13528, 16910, 20292, 25365, 33820, 40584, 50730, 67640, 101460, 202920]

約数ペア:

[(1, 202920), (2, 101460), (3, 67640), (4, 50730), (5, 40584), (6, 33820), (8, 25365), (10, 20292), (12, 16910), (15, 13528), (19, 10680), (20, 10146), (24, 8455), (30, 6764), (38, 5340), (40, 5073), (57, 3560), (60, 3382), (76, 2670), (89, 2280), (95, 2136), (114, 1780), (120, 1691), (152, 1335), (178, 1140), (190, 1068), (228, 890), (267, 760), (285, 712), (356, 570), (380, 534), (445, 456)]