19495600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 120

約数和(自身を含む): 51478848

約数和(自身を除く): 31983248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 47, 50, 61, 68, 80, 85, 94, 100, 122, 136, 170, 188, 200, 235, 244, 272, 305, 340, 376, 400, 425, 470, 488, 610, 680, 752, 799, 850, 940, 976, 1037, 1175, 1220, 1360, 1525, 1598, 1700, 1880, 2074, 2350, 2440, 2867, 3050, 3196, 3400, 3760, 3995, 4148, 4700, 4880, 5185, 5734, 6100, 6392, 6800, 7990, 8296, 9400, 10370, 11468, 12200, 12784, 14335, 15980, 16592, 18800, 19975, 20740, 22936, 24400, 25925, 28670, 31960, 39950, 41480, 45872, 48739, 51850, 57340, 63920, 71675, 79900, 82960, 97478, 103700, 114680, 143350, 159800, 194956, 207400, 229360, 243695, 286700, 319600, 389912, 414800, 487390, 573400, 779824, 974780, 1146800, 1218475, 1949560, 2436950, 3899120, 4873900, 9747800, 19495600]

約数ペア:

[(1, 19495600), (2, 9747800), (4, 4873900), (5, 3899120), (8, 2436950), (10, 1949560), (16, 1218475), (17, 1146800), (20, 974780), (25, 779824), (34, 573400), (40, 487390), (47, 414800), (50, 389912), (61, 319600), (68, 286700), (80, 243695), (85, 229360), (94, 207400), (100, 194956), (122, 159800), (136, 143350), (170, 114680), (188, 103700), (200, 97478), (235, 82960), (244, 79900), (272, 71675), (305, 63920), (340, 57340), (376, 51850), (400, 48739), (425, 45872), (470, 41480), (488, 39950), (610, 31960), (680, 28670), (752, 25925), (799, 24400), (850, 22936), (940, 20740), (976, 19975), (1037, 18800), (1175, 16592), (1220, 15980), (1360, 14335), (1525, 12784), (1598, 12200), (1700, 11468), (1880, 10370), (2074, 9400), (2350, 8296), (2440, 7990), (2867, 6800), (3050, 6392), (3196, 6100), (3400, 5734), (3760, 5185), (3995, 4880), (4148, 4700)]