20347600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:94

約数の個数: 180

約数和(自身を含む): 61903776

約数和(自身を除く): 41556176

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 43, 50, 52, 56, 65, 70, 80, 86, 91, 100, 104, 112, 130, 140, 169, 172, 175, 182, 200, 208, 215, 260, 280, 301, 325, 338, 344, 350, 364, 400, 430, 455, 520, 559, 560, 602, 650, 676, 688, 700, 728, 845, 860, 910, 1040, 1075, 1118, 1183, 1204, 1300, 1352, 1400, 1456, 1505, 1690, 1720, 1820, 2150, 2236, 2275, 2366, 2408, 2600, 2704, 2795, 2800, 3010, 3380, 3440, 3640, 3913, 4225, 4300, 4472, 4550, 4732, 4816, 5200, 5590, 5915, 6020, 6760, 7267, 7280, 7525, 7826, 8450, 8600, 8944, 9100, 9464, 11180, 11830, 12040, 13520, 13975, 14534, 15050, 15652, 16900, 17200, 18200, 18928, 19565, 22360, 23660, 24080, 27950, 29068, 29575, 30100, 31304, 33800, 36335, 36400, 39130, 44720, 47320, 50869, 55900, 58136, 59150, 60200, 62608, 67600, 72670, 78260, 94640, 97825, 101738, 111800, 116272, 118300, 120400, 145340, 156520, 181675, 195650, 203476, 223600, 236600, 254345, 290680, 313040, 363350, 391300, 406952, 473200, 508690, 581360, 726700, 782600, 813904, 1017380, 1271725, 1453400, 1565200, 2034760, 2543450, 2906800, 4069520, 5086900, 10173800, 20347600]

約数ペア:

[(1, 20347600), (2, 10173800), (4, 5086900), (5, 4069520), (7, 2906800), (8, 2543450), (10, 2034760), (13, 1565200), (14, 1453400), (16, 1271725), (20, 1017380), (25, 813904), (26, 782600), (28, 726700), (35, 581360), (40, 508690), (43, 473200), (50, 406952), (52, 391300), (56, 363350), (65, 313040), (70, 290680), (80, 254345), (86, 236600), (91, 223600), (100, 203476), (104, 195650), (112, 181675), (130, 156520), (140, 145340), (169, 120400), (172, 118300), (175, 116272), (182, 111800), (200, 101738), (208, 97825), (215, 94640), (260, 78260), (280, 72670), (301, 67600), (325, 62608), (338, 60200), (344, 59150), (350, 58136), (364, 55900), (400, 50869), (430, 47320), (455, 44720), (520, 39130), (559, 36400), (560, 36335), (602, 33800), (650, 31304), (676, 30100), (688, 29575), (700, 29068), (728, 27950), (845, 24080), (860, 23660), (910, 22360), (1040, 19565), (1075, 18928), (1118, 18200), (1183, 17200), (1204, 16900), (1300, 15652), (1352, 15050), (1400, 14534), (1456, 13975), (1505, 13520), (1690, 12040), (1720, 11830), (1820, 11180), (2150, 9464), (2236, 9100), (2275, 8944), (2366, 8600), (2408, 8450), (2600, 7826), (2704, 7525), (2795, 7280), (2800, 7267), (3010, 6760), (3380, 6020), (3440, 5915), (3640, 5590), (3913, 5200), (4225, 4816), (4300, 4732), (4472, 4550)]