18847920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{863}}^1$

素因数の和:899

約数の個数: 160

約数和(自身を含む): 71995392

約数和(自身を除く): 53147472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 863, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1726, 1820, 2184, 2589, 2730, 3120, 3452, 3640, 4315, 4368, 5178, 5460, 6041, 6904, 7280, 8630, 10356, 10920, 11219, 12082, 12945, 13808, 17260, 18123, 20712, 21840, 22438, 24164, 25890, 30205, 33657, 34520, 36246, 41424, 44876, 48328, 51780, 56095, 60410, 67314, 69040, 72492, 78533, 89752, 90615, 96656, 103560, 112190, 120820, 134628, 144984, 157066, 168285, 179504, 181230, 207120, 224380, 235599, 241640, 269256, 289968, 314132, 336570, 362460, 392665, 448760, 471198, 483280, 538512, 628264, 673140, 724920, 785330, 897520, 942396, 1177995, 1256528, 1346280, 1449840, 1570660, 1884792, 2355990, 2692560, 3141320, 3769584, 4711980, 6282640, 9423960, 18847920]

約数ペア:

[(1, 18847920), (2, 9423960), (3, 6282640), (4, 4711980), (5, 3769584), (6, 3141320), (7, 2692560), (8, 2355990), (10, 1884792), (12, 1570660), (13, 1449840), (14, 1346280), (15, 1256528), (16, 1177995), (20, 942396), (21, 897520), (24, 785330), (26, 724920), (28, 673140), (30, 628264), (35, 538512), (39, 483280), (40, 471198), (42, 448760), (48, 392665), (52, 362460), (56, 336570), (60, 314132), (65, 289968), (70, 269256), (78, 241640), (80, 235599), (84, 224380), (91, 207120), (104, 181230), (105, 179504), (112, 168285), (120, 157066), (130, 144984), (140, 134628), (156, 120820), (168, 112190), (182, 103560), (195, 96656), (208, 90615), (210, 89752), (240, 78533), (260, 72492), (273, 69040), (280, 67314), (312, 60410), (336, 56095), (364, 51780), (390, 48328), (420, 44876), (455, 41424), (520, 36246), (546, 34520), (560, 33657), (624, 30205), (728, 25890), (780, 24164), (840, 22438), (863, 21840), (910, 20712), (1040, 18123), (1092, 17260), (1365, 13808), (1456, 12945), (1560, 12082), (1680, 11219), (1726, 10920), (1820, 10356), (2184, 8630), (2589, 7280), (2730, 6904), (3120, 6041), (3452, 5460), (3640, 5178), (4315, 4368)]