19766240

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 144

約数和(自身を含む): 54785808

約数和(自身を除く): 35019568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 43, 52, 65, 68, 80, 85, 86, 104, 130, 136, 160, 169, 170, 172, 208, 215, 221, 260, 272, 338, 340, 344, 416, 430, 442, 520, 544, 559, 676, 680, 688, 731, 845, 860, 884, 1040, 1105, 1118, 1352, 1360, 1376, 1462, 1690, 1720, 1768, 2080, 2210, 2236, 2704, 2720, 2795, 2873, 2924, 3380, 3440, 3536, 3655, 4420, 4472, 5408, 5590, 5746, 5848, 6760, 6880, 7072, 7267, 7310, 8840, 8944, 9503, 11180, 11492, 11696, 13520, 14365, 14534, 14620, 17680, 17888, 19006, 22360, 22984, 23392, 27040, 28730, 29068, 29240, 35360, 36335, 38012, 44720, 45968, 47515, 57460, 58136, 58480, 72670, 76024, 89440, 91936, 95030, 114920, 116272, 116960, 123539, 145340, 152048, 190060, 229840, 232544, 247078, 290680, 304096, 380120, 459680, 494156, 581360, 617695, 760240, 988312, 1162720, 1235390, 1520480, 1976624, 2470780, 3953248, 4941560, 9883120, 19766240]

約数ペア:

[(1, 19766240), (2, 9883120), (4, 4941560), (5, 3953248), (8, 2470780), (10, 1976624), (13, 1520480), (16, 1235390), (17, 1162720), (20, 988312), (26, 760240), (32, 617695), (34, 581360), (40, 494156), (43, 459680), (52, 380120), (65, 304096), (68, 290680), (80, 247078), (85, 232544), (86, 229840), (104, 190060), (130, 152048), (136, 145340), (160, 123539), (169, 116960), (170, 116272), (172, 114920), (208, 95030), (215, 91936), (221, 89440), (260, 76024), (272, 72670), (338, 58480), (340, 58136), (344, 57460), (416, 47515), (430, 45968), (442, 44720), (520, 38012), (544, 36335), (559, 35360), (676, 29240), (680, 29068), (688, 28730), (731, 27040), (845, 23392), (860, 22984), (884, 22360), (1040, 19006), (1105, 17888), (1118, 17680), (1352, 14620), (1360, 14534), (1376, 14365), (1462, 13520), (1690, 11696), (1720, 11492), (1768, 11180), (2080, 9503), (2210, 8944), (2236, 8840), (2704, 7310), (2720, 7267), (2795, 7072), (2873, 6880), (2924, 6760), (3380, 5848), (3440, 5746), (3536, 5590), (3655, 5408), (4420, 4472)]