81700190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 189665280

約数和(自身を除く): 107965090

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 31, 38, 55, 62, 65, 95, 97, 110, 130, 143, 155, 190, 194, 209, 247, 286, 310, 341, 403, 418, 485, 494, 589, 682, 715, 806, 970, 1045, 1067, 1178, 1235, 1261, 1430, 1705, 1843, 2015, 2090, 2134, 2470, 2522, 2717, 2945, 3007, 3410, 3686, 4030, 4433, 5335, 5434, 5890, 6014, 6305, 6479, 7657, 8866, 9215, 10670, 12610, 12958, 13585, 13871, 15035, 15314, 18430, 20273, 22165, 23959, 27170, 27742, 30070, 32395, 33077, 38285, 39091, 40546, 44330, 47918, 57133, 64790, 66154, 69355, 76570, 78182, 84227, 101365, 114266, 119795, 138710, 165385, 168454, 195455, 202730, 239590, 263549, 285665, 330770, 390910, 421135, 430001, 527098, 571330, 628463, 742729, 842270, 860002, 1256926, 1317745, 1485458, 2150005, 2635490, 3142315, 3713645, 4300010, 6284630, 7427290, 8170019, 16340038, 40850095, 81700190]

約数ペア:

[(1, 81700190), (2, 40850095), (5, 16340038), (10, 8170019), (11, 7427290), (13, 6284630), (19, 4300010), (22, 3713645), (26, 3142315), (31, 2635490), (38, 2150005), (55, 1485458), (62, 1317745), (65, 1256926), (95, 860002), (97, 842270), (110, 742729), (130, 628463), (143, 571330), (155, 527098), (190, 430001), (194, 421135), (209, 390910), (247, 330770), (286, 285665), (310, 263549), (341, 239590), (403, 202730), (418, 195455), (485, 168454), (494, 165385), (589, 138710), (682, 119795), (715, 114266), (806, 101365), (970, 84227), (1045, 78182), (1067, 76570), (1178, 69355), (1235, 66154), (1261, 64790), (1430, 57133), (1705, 47918), (1843, 44330), (2015, 40546), (2090, 39091), (2134, 38285), (2470, 33077), (2522, 32395), (2717, 30070), (2945, 27742), (3007, 27170), (3410, 23959), (3686, 22165), (4030, 20273), (4433, 18430), (5335, 15314), (5434, 15035), (5890, 13871), (6014, 13585), (6305, 12958), (6479, 12610), (7657, 10670), (8866, 9215)]