81215190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:563

約数の個数: 128

約数和(自身を含む): 250629120

約数和(自身を除く): 169413930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 97, 105, 126, 135, 189, 194, 210, 270, 291, 315, 378, 443, 485, 582, 630, 679, 873, 886, 945, 970, 1329, 1358, 1455, 1746, 1890, 2037, 2215, 2619, 2658, 2910, 3101, 3395, 3987, 4074, 4365, 4430, 5238, 6111, 6202, 6645, 6790, 7974, 8730, 9303, 10185, 11961, 12222, 13095, 13290, 15505, 18333, 18606, 19935, 20370, 23922, 26190, 27909, 30555, 31010, 36666, 39870, 42971, 46515, 55818, 59805, 61110, 83727, 85942, 91665, 93030, 119610, 128913, 139545, 167454, 183330, 214855, 257826, 279090, 300797, 386739, 418635, 429710, 601594, 644565, 773478, 837270, 902391, 1160217, 1289130, 1503985, 1804782, 1933695, 2320434, 2707173, 3007970, 3867390, 4511955, 5414346, 5801085, 8121519, 9023910, 11602170, 13535865, 16243038, 27071730, 40607595, 81215190]

約数ペア:

[(1, 81215190), (2, 40607595), (3, 27071730), (5, 16243038), (6, 13535865), (7, 11602170), (9, 9023910), (10, 8121519), (14, 5801085), (15, 5414346), (18, 4511955), (21, 3867390), (27, 3007970), (30, 2707173), (35, 2320434), (42, 1933695), (45, 1804782), (54, 1503985), (63, 1289130), (70, 1160217), (90, 902391), (97, 837270), (105, 773478), (126, 644565), (135, 601594), (189, 429710), (194, 418635), (210, 386739), (270, 300797), (291, 279090), (315, 257826), (378, 214855), (443, 183330), (485, 167454), (582, 139545), (630, 128913), (679, 119610), (873, 93030), (886, 91665), (945, 85942), (970, 83727), (1329, 61110), (1358, 59805), (1455, 55818), (1746, 46515), (1890, 42971), (2037, 39870), (2215, 36666), (2619, 31010), (2658, 30555), (2910, 27909), (3101, 26190), (3395, 23922), (3987, 20370), (4074, 19935), (4365, 18606), (4430, 18333), (5238, 15505), (6111, 13290), (6202, 13095), (6645, 12222), (6790, 11961), (7974, 10185), (8730, 9303)]