18171890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 37345536

約数和(自身を除く): 19173646

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 73, 110, 146, 155, 310, 341, 365, 682, 730, 803, 1606, 1705, 2263, 3410, 4015, 4526, 5329, 8030, 10658, 11315, 22630, 24893, 26645, 49786, 53290, 58619, 117238, 124465, 165199, 248930, 293095, 330398, 586190, 825995, 1651990, 1817189, 3634378, 9085945, 18171890]

約数ペア:

[(1, 18171890), (2, 9085945), (5, 3634378), (10, 1817189), (11, 1651990), (22, 825995), (31, 586190), (55, 330398), (62, 293095), (73, 248930), (110, 165199), (146, 124465), (155, 117238), (310, 58619), (341, 53290), (365, 49786), (682, 26645), (730, 24893), (803, 22630), (1606, 11315), (1705, 10658), (2263, 8030), (3410, 5329), (4015, 4526)]