203478920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 471063600

約数和(自身を除く): 267584680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 89, 122, 178, 244, 305, 356, 445, 488, 610, 712, 890, 937, 1220, 1780, 1874, 2440, 3560, 3748, 4685, 5429, 7496, 9370, 10858, 18740, 21716, 27145, 37480, 43432, 54290, 57157, 83393, 108580, 114314, 166786, 217160, 228628, 285785, 333572, 416965, 457256, 571570, 667144, 833930, 1143140, 1667860, 2286280, 3335720, 5086973, 10173946, 20347892, 25434865, 40695784, 50869730, 101739460, 203478920]

約数ペア:

[(1, 203478920), (2, 101739460), (4, 50869730), (5, 40695784), (8, 25434865), (10, 20347892), (20, 10173946), (40, 5086973), (61, 3335720), (89, 2286280), (122, 1667860), (178, 1143140), (244, 833930), (305, 667144), (356, 571570), (445, 457256), (488, 416965), (610, 333572), (712, 285785), (890, 228628), (937, 217160), (1220, 166786), (1780, 114314), (1874, 108580), (2440, 83393), (3560, 57157), (3748, 54290), (4685, 43432), (5429, 37480), (7496, 27145), (9370, 21716), (10858, 18740)]