18268980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 53606784

約数和(自身を除く): 35337804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 73, 86, 97, 129, 146, 172, 194, 215, 219, 258, 291, 292, 365, 388, 430, 438, 485, 516, 582, 645, 730, 860, 876, 970, 1095, 1164, 1290, 1455, 1460, 1940, 2190, 2580, 2910, 3139, 4171, 4380, 5820, 6278, 7081, 8342, 9417, 12513, 12556, 14162, 15695, 16684, 18834, 20855, 21243, 25026, 28324, 31390, 35405, 37668, 41710, 42486, 47085, 50052, 62565, 62780, 70810, 83420, 84972, 94170, 106215, 125130, 141620, 188340, 212430, 250260, 304483, 424860, 608966, 913449, 1217932, 1522415, 1826898, 3044830, 3653796, 4567245, 6089660, 9134490, 18268980]

約数ペア:

[(1, 18268980), (2, 9134490), (3, 6089660), (4, 4567245), (5, 3653796), (6, 3044830), (10, 1826898), (12, 1522415), (15, 1217932), (20, 913449), (30, 608966), (43, 424860), (60, 304483), (73, 250260), (86, 212430), (97, 188340), (129, 141620), (146, 125130), (172, 106215), (194, 94170), (215, 84972), (219, 83420), (258, 70810), (291, 62780), (292, 62565), (365, 50052), (388, 47085), (430, 42486), (438, 41710), (485, 37668), (516, 35405), (582, 31390), (645, 28324), (730, 25026), (860, 21243), (876, 20855), (970, 18834), (1095, 16684), (1164, 15695), (1290, 14162), (1455, 12556), (1460, 12513), (1940, 9417), (2190, 8342), (2580, 7081), (2910, 6278), (3139, 5820), (4171, 4380)]