19271200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 54137160

約数和(自身を除く): 34865960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 32, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 109, 130, 136, 160, 170, 200, 208, 218, 221, 260, 272, 325, 340, 400, 416, 425, 436, 442, 520, 544, 545, 650, 680, 800, 850, 872, 884, 1040, 1090, 1105, 1300, 1360, 1417, 1700, 1744, 1768, 1853, 2080, 2180, 2210, 2600, 2720, 2725, 2834, 3400, 3488, 3536, 3706, 4360, 4420, 5200, 5450, 5525, 5668, 6800, 7072, 7085, 7412, 8720, 8840, 9265, 10400, 10900, 11050, 11336, 13600, 14170, 14824, 17440, 17680, 18530, 21800, 22100, 22672, 24089, 28340, 29648, 35360, 35425, 37060, 43600, 44200, 45344, 46325, 48178, 56680, 59296, 70850, 74120, 87200, 88400, 92650, 96356, 113360, 120445, 141700, 148240, 176800, 185300, 192712, 226720, 240890, 283400, 296480, 370600, 385424, 481780, 566800, 602225, 741200, 770848, 963560, 1133600, 1204450, 1482400, 1927120, 2408900, 3854240, 4817800, 9635600, 19271200]

約数ペア:

[(1, 19271200), (2, 9635600), (4, 4817800), (5, 3854240), (8, 2408900), (10, 1927120), (13, 1482400), (16, 1204450), (17, 1133600), (20, 963560), (25, 770848), (26, 741200), (32, 602225), (34, 566800), (40, 481780), (50, 385424), (52, 370600), (65, 296480), (68, 283400), (80, 240890), (85, 226720), (100, 192712), (104, 185300), (109, 176800), (130, 148240), (136, 141700), (160, 120445), (170, 113360), (200, 96356), (208, 92650), (218, 88400), (221, 87200), (260, 74120), (272, 70850), (325, 59296), (340, 56680), (400, 48178), (416, 46325), (425, 45344), (436, 44200), (442, 43600), (520, 37060), (544, 35425), (545, 35360), (650, 29648), (680, 28340), (800, 24089), (850, 22672), (872, 22100), (884, 21800), (1040, 18530), (1090, 17680), (1105, 17440), (1300, 14824), (1360, 14170), (1417, 13600), (1700, 11336), (1744, 11050), (1768, 10900), (1853, 10400), (2080, 9265), (2180, 8840), (2210, 8720), (2600, 7412), (2720, 7085), (2725, 7072), (2834, 6800), (3400, 5668), (3488, 5525), (3536, 5450), (3706, 5200), (4360, 4420)]