19771320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 62763840

約数和(自身を除く): 42992520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 61, 73, 74, 111, 120, 122, 146, 148, 183, 185, 219, 222, 244, 292, 296, 305, 365, 366, 370, 438, 444, 488, 555, 584, 610, 730, 732, 740, 876, 888, 915, 1095, 1110, 1220, 1460, 1464, 1480, 1752, 1830, 2190, 2220, 2257, 2440, 2701, 2920, 3660, 4380, 4440, 4453, 4514, 5402, 6771, 7320, 8103, 8760, 8906, 9028, 10804, 11285, 13359, 13505, 13542, 16206, 17812, 18056, 21608, 22265, 22570, 26718, 27010, 27084, 32412, 33855, 35624, 40515, 44530, 45140, 53436, 54020, 54168, 64824, 66795, 67710, 81030, 89060, 90280, 106872, 108040, 133590, 135420, 162060, 164761, 178120, 267180, 270840, 324120, 329522, 494283, 534360, 659044, 823805, 988566, 1318088, 1647610, 1977132, 2471415, 3295220, 3954264, 4942830, 6590440, 9885660, 19771320]

約数ペア:

[(1, 19771320), (2, 9885660), (3, 6590440), (4, 4942830), (5, 3954264), (6, 3295220), (8, 2471415), (10, 1977132), (12, 1647610), (15, 1318088), (20, 988566), (24, 823805), (30, 659044), (37, 534360), (40, 494283), (60, 329522), (61, 324120), (73, 270840), (74, 267180), (111, 178120), (120, 164761), (122, 162060), (146, 135420), (148, 133590), (183, 108040), (185, 106872), (219, 90280), (222, 89060), (244, 81030), (292, 67710), (296, 66795), (305, 64824), (365, 54168), (366, 54020), (370, 53436), (438, 45140), (444, 44530), (488, 40515), (555, 35624), (584, 33855), (610, 32412), (730, 27084), (732, 27010), (740, 26718), (876, 22570), (888, 22265), (915, 21608), (1095, 18056), (1110, 17812), (1220, 16206), (1460, 13542), (1464, 13505), (1480, 13359), (1752, 11285), (1830, 10804), (2190, 9028), (2220, 8906), (2257, 8760), (2440, 8103), (2701, 7320), (2920, 6771), (3660, 5402), (4380, 4514), (4440, 4453)]