21760700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 53590320

約数和(自身を除く): 31829620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 881, 950, 988, 1235, 1300, 1762, 1900, 2470, 3524, 4405, 4940, 6175, 8810, 11453, 12350, 16739, 17620, 22025, 22906, 24700, 33478, 44050, 45812, 57265, 66956, 83695, 88100, 114530, 167390, 217607, 229060, 286325, 334780, 418475, 435214, 572650, 836950, 870428, 1088035, 1145300, 1673900, 2176070, 4352140, 5440175, 10880350, 21760700]

約数ペア:

[(1, 21760700), (2, 10880350), (4, 5440175), (5, 4352140), (10, 2176070), (13, 1673900), (19, 1145300), (20, 1088035), (25, 870428), (26, 836950), (38, 572650), (50, 435214), (52, 418475), (65, 334780), (76, 286325), (95, 229060), (100, 217607), (130, 167390), (190, 114530), (247, 88100), (260, 83695), (325, 66956), (380, 57265), (475, 45812), (494, 44050), (650, 33478), (881, 24700), (950, 22906), (988, 22025), (1235, 17620), (1300, 16739), (1762, 12350), (1900, 11453), (2470, 8810), (3524, 6175), (4405, 4940)]