1019920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:104

約数の個数: 80

約数和(自身を含む): 2767680

約数和(自身を除く): 1747760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 61, 76, 80, 88, 95, 110, 122, 152, 176, 190, 209, 220, 244, 304, 305, 380, 418, 440, 488, 610, 671, 760, 836, 880, 976, 1045, 1159, 1220, 1342, 1520, 1672, 2090, 2318, 2440, 2684, 3344, 3355, 4180, 4636, 4880, 5368, 5795, 6710, 8360, 9272, 10736, 11590, 12749, 13420, 16720, 18544, 23180, 25498, 26840, 46360, 50996, 53680, 63745, 92720, 101992, 127490, 203984, 254980, 509960, 1019920]

約数ペア:

[(1, 1019920), (2, 509960), (4, 254980), (5, 203984), (8, 127490), (10, 101992), (11, 92720), (16, 63745), (19, 53680), (20, 50996), (22, 46360), (38, 26840), (40, 25498), (44, 23180), (55, 18544), (61, 16720), (76, 13420), (80, 12749), (88, 11590), (95, 10736), (110, 9272), (122, 8360), (152, 6710), (176, 5795), (190, 5368), (209, 4880), (220, 4636), (244, 4180), (304, 3355), (305, 3344), (380, 2684), (418, 2440), (440, 2318), (488, 2090), (610, 1672), (671, 1520), (760, 1342), (836, 1220), (880, 1159), (976, 1045)]