18457740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:301

約数の個数: 192

約数和(自身を含む): 69350400

約数和(自身を除く): 50892660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 257, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 514, 532, 540, 570, 630, 665, 684, 756, 771, 798, 855, 945, 1026, 1028, 1140, 1197, 1260, 1285, 1330, 1542, 1596, 1710, 1799, 1890, 1995, 2052, 2313, 2394, 2565, 2570, 2660, 3084, 3420, 3591, 3598, 3780, 3855, 3990, 4626, 4788, 4883, 5130, 5140, 5397, 5985, 6939, 7182, 7196, 7710, 7980, 8995, 9252, 9766, 10260, 10794, 11565, 11970, 13878, 14364, 14649, 15420, 16191, 17955, 17990, 19532, 21588, 23130, 23940, 24415, 26985, 27756, 29298, 32382, 34181, 34695, 35910, 35980, 43947, 46260, 48573, 48830, 53970, 58596, 64764, 68362, 69390, 71820, 73245, 80955, 87894, 97146, 97660, 102543, 107940, 131841, 136724, 138780, 146490, 161910, 170905, 175788, 194292, 205086, 219735, 242865, 263682, 292980, 307629, 323820, 341810, 410172, 439470, 485730, 512715, 527364, 615258, 659205, 683620, 878940, 922887, 971460, 1025430, 1230516, 1318410, 1538145, 1845774, 2050860, 2636820, 3076290, 3691548, 4614435, 6152580, 9228870, 18457740]

約数ペア:

[(1, 18457740), (2, 9228870), (3, 6152580), (4, 4614435), (5, 3691548), (6, 3076290), (7, 2636820), (9, 2050860), (10, 1845774), (12, 1538145), (14, 1318410), (15, 1230516), (18, 1025430), (19, 971460), (20, 922887), (21, 878940), (27, 683620), (28, 659205), (30, 615258), (35, 527364), (36, 512715), (38, 485730), (42, 439470), (45, 410172), (54, 341810), (57, 323820), (60, 307629), (63, 292980), (70, 263682), (76, 242865), (84, 219735), (90, 205086), (95, 194292), (105, 175788), (108, 170905), (114, 161910), (126, 146490), (133, 138780), (135, 136724), (140, 131841), (171, 107940), (180, 102543), (189, 97660), (190, 97146), (210, 87894), (228, 80955), (252, 73245), (257, 71820), (266, 69390), (270, 68362), (285, 64764), (315, 58596), (342, 53970), (378, 48830), (380, 48573), (399, 46260), (420, 43947), (513, 35980), (514, 35910), (532, 34695), (540, 34181), (570, 32382), (630, 29298), (665, 27756), (684, 26985), (756, 24415), (771, 23940), (798, 23130), (855, 21588), (945, 19532), (1026, 17990), (1028, 17955), (1140, 16191), (1197, 15420), (1260, 14649), (1285, 14364), (1330, 13878), (1542, 11970), (1596, 11565), (1710, 10794), (1799, 10260), (1890, 9766), (1995, 9252), (2052, 8995), (2313, 7980), (2394, 7710), (2565, 7196), (2570, 7182), (2660, 6939), (3084, 5985), (3420, 5397), (3591, 5140), (3598, 5130), (3780, 4883), (3855, 4788), (3990, 4626)]