20077314920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:860

約数の個数: 192

約数和(自身を含む): 50912064000

約数和(自身を除く): 30834749080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 149, 155, 169, 248, 260, 298, 310, 338, 403, 520, 596, 620, 643, 676, 745, 806, 845, 1192, 1240, 1286, 1352, 1490, 1612, 1690, 1937, 2015, 2572, 2980, 3215, 3224, 3380, 3874, 4030, 4619, 5144, 5239, 5960, 6430, 6760, 7748, 8060, 8359, 9238, 9685, 10478, 12860, 15496, 16120, 16718, 18476, 19370, 19933, 20956, 23095, 25181, 25720, 26195, 33436, 36952, 38740, 39866, 41795, 41912, 46190, 50362, 52390, 60047, 66872, 77480, 79732, 83590, 92380, 95807, 99665, 100724, 104780, 108667, 120094, 125905, 159464, 167180, 184760, 191614, 199330, 201448, 209560, 217334, 240188, 251810, 259129, 300235, 334360, 383228, 398660, 434668, 479035, 480376, 503620, 518258, 543335, 600470, 766456, 780611, 797320, 869336, 958070, 1007240, 1036516, 1086670, 1200940, 1245491, 1295645, 1561222, 1916140, 2073032, 2173340, 2401880, 2490982, 2591290, 2970017, 3122444, 3368677, 3832280, 3903055, 4346680, 4981964, 5182580, 5940034, 6227455, 6244888, 6737354, 7806110, 9963928, 10365160, 11880068, 12454910, 13474708, 14850085, 15612220, 16191383, 16843385, 23760136, 24909820, 26949416, 29700170, 31224440, 32382766, 33686770, 38610221, 49819640, 59400340, 64765532, 67373540, 77220442, 80956915, 118800680, 129531064, 134747080, 154440884, 161913830, 193051105, 308881768, 323827660, 386102210, 501932873, 647655320, 772204420, 1003865746, 1544408840, 2007731492, 2509664365, 4015462984, 5019328730, 10038657460, 20077314920]

約数ペア:

[(1, 20077314920), (2, 10038657460), (4, 5019328730), (5, 4015462984), (8, 2509664365), (10, 2007731492), (13, 1544408840), (20, 1003865746), (26, 772204420), (31, 647655320), (40, 501932873), (52, 386102210), (62, 323827660), (65, 308881768), (104, 193051105), (124, 161913830), (130, 154440884), (149, 134747080), (155, 129531064), (169, 118800680), (248, 80956915), (260, 77220442), (298, 67373540), (310, 64765532), (338, 59400340), (403, 49819640), (520, 38610221), (596, 33686770), (620, 32382766), (643, 31224440), (676, 29700170), (745, 26949416), (806, 24909820), (845, 23760136), (1192, 16843385), (1240, 16191383), (1286, 15612220), (1352, 14850085), (1490, 13474708), (1612, 12454910), (1690, 11880068), (1937, 10365160), (2015, 9963928), (2572, 7806110), (2980, 6737354), (3215, 6244888), (3224, 6227455), (3380, 5940034), (3874, 5182580), (4030, 4981964), (4619, 4346680), (5144, 3903055), (5239, 3832280), (5960, 3368677), (6430, 3122444), (6760, 2970017), (7748, 2591290), (8060, 2490982), (8359, 2401880), (9238, 2173340), (9685, 2073032), (10478, 1916140), (12860, 1561222), (15496, 1295645), (16120, 1245491), (16718, 1200940), (18476, 1086670), (19370, 1036516), (19933, 1007240), (20956, 958070), (23095, 869336), (25181, 797320), (25720, 780611), (26195, 766456), (33436, 600470), (36952, 543335), (38740, 518258), (39866, 503620), (41795, 480376), (41912, 479035), (46190, 434668), (50362, 398660), (52390, 383228), (60047, 334360), (66872, 300235), (77480, 259129), (79732, 251810), (83590, 240188), (92380, 217334), (95807, 209560), (99665, 201448), (100724, 199330), (104780, 191614), (108667, 184760), (120094, 167180), (125905, 159464)]