18978336

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:203

約数の個数: 144

約数和(自身を含む): 60127704

約数和(自身を除く): 41149368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 37, 39, 48, 52, 72, 74, 78, 96, 104, 111, 117, 137, 144, 148, 156, 208, 222, 234, 274, 288, 296, 312, 333, 411, 416, 444, 468, 481, 548, 592, 624, 666, 822, 888, 936, 962, 1096, 1184, 1233, 1248, 1332, 1443, 1644, 1776, 1781, 1872, 1924, 2192, 2466, 2664, 2886, 3288, 3552, 3562, 3744, 3848, 4329, 4384, 4932, 5069, 5328, 5343, 5772, 6576, 7124, 7696, 8658, 9864, 10138, 10656, 10686, 11544, 13152, 14248, 15207, 15392, 16029, 17316, 19728, 20276, 21372, 23088, 28496, 30414, 32058, 34632, 39456, 40552, 42744, 45621, 46176, 56992, 60828, 64116, 65897, 69264, 81104, 85488, 91242, 121656, 128232, 131794, 138528, 162208, 170976, 182484, 197691, 243312, 256464, 263588, 364968, 395382, 486624, 512928, 527176, 593073, 729936, 790764, 1054352, 1186146, 1459872, 1581528, 2108704, 2372292, 3163056, 4744584, 6326112, 9489168, 18978336]

約数ペア:

[(1, 18978336), (2, 9489168), (3, 6326112), (4, 4744584), (6, 3163056), (8, 2372292), (9, 2108704), (12, 1581528), (13, 1459872), (16, 1186146), (18, 1054352), (24, 790764), (26, 729936), (32, 593073), (36, 527176), (37, 512928), (39, 486624), (48, 395382), (52, 364968), (72, 263588), (74, 256464), (78, 243312), (96, 197691), (104, 182484), (111, 170976), (117, 162208), (137, 138528), (144, 131794), (148, 128232), (156, 121656), (208, 91242), (222, 85488), (234, 81104), (274, 69264), (288, 65897), (296, 64116), (312, 60828), (333, 56992), (411, 46176), (416, 45621), (444, 42744), (468, 40552), (481, 39456), (548, 34632), (592, 32058), (624, 30414), (666, 28496), (822, 23088), (888, 21372), (936, 20276), (962, 19728), (1096, 17316), (1184, 16029), (1233, 15392), (1248, 15207), (1332, 14248), (1443, 13152), (1644, 11544), (1776, 10686), (1781, 10656), (1872, 10138), (1924, 9864), (2192, 8658), (2466, 7696), (2664, 7124), (2886, 6576), (3288, 5772), (3552, 5343), (3562, 5328), (3744, 5069), (3848, 4932), (4329, 4384)]