81453679060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{227}}^1\times {\mathrm{3823}}^1$

素因数の和:4110

約数の個数: 144

約数和(自身を含む): 195323740416

約数和(自身を除く): 113870061356

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 227, 247, 260, 361, 380, 454, 494, 722, 908, 988, 1135, 1235, 1444, 1805, 2270, 2470, 2951, 3610, 3823, 4313, 4540, 4693, 4940, 5902, 7220, 7646, 8626, 9386, 11804, 14755, 15292, 17252, 18772, 19115, 21565, 23465, 29510, 38230, 43130, 46930, 49699, 56069, 59020, 72637, 76460, 81947, 86260, 93860, 99398, 112138, 145274, 163894, 198796, 224276, 248495, 280345, 290548, 327788, 363185, 409735, 496990, 560690, 726370, 819470, 867821, 944281, 993980, 1065311, 1121380, 1380103, 1452740, 1638940, 1735642, 1888562, 2130622, 2760206, 3471284, 3777124, 4261244, 4339105, 4721405, 5326555, 5520412, 6900515, 8678210, 9442810, 10653110, 11281673, 13801030, 16488599, 17356420, 17941339, 18885620, 21306220, 22563346, 27602060, 32977198, 35882678, 45126692, 56408365, 65954396, 71765356, 82442995, 89706695, 112816730, 164885990, 179413390, 214351787, 225633460, 313283381, 329771980, 358826780, 428703574, 626566762, 857407148, 1071758935, 1253133524, 1566416905, 2143517870, 3132833810, 4072683953, 4287035740, 6265667620, 8145367906, 16290735812, 20363419765, 40726839530, 81453679060]

約数ペア:

[(1, 81453679060), (2, 40726839530), (4, 20363419765), (5, 16290735812), (10, 8145367906), (13, 6265667620), (19, 4287035740), (20, 4072683953), (26, 3132833810), (38, 2143517870), (52, 1566416905), (65, 1253133524), (76, 1071758935), (95, 857407148), (130, 626566762), (190, 428703574), (227, 358826780), (247, 329771980), (260, 313283381), (361, 225633460), (380, 214351787), (454, 179413390), (494, 164885990), (722, 112816730), (908, 89706695), (988, 82442995), (1135, 71765356), (1235, 65954396), (1444, 56408365), (1805, 45126692), (2270, 35882678), (2470, 32977198), (2951, 27602060), (3610, 22563346), (3823, 21306220), (4313, 18885620), (4540, 17941339), (4693, 17356420), (4940, 16488599), (5902, 13801030), (7220, 11281673), (7646, 10653110), (8626, 9442810), (9386, 8678210), (11804, 6900515), (14755, 5520412), (15292, 5326555), (17252, 4721405), (18772, 4339105), (19115, 4261244), (21565, 3777124), (23465, 3471284), (29510, 2760206), (38230, 2130622), (43130, 1888562), (46930, 1735642), (49699, 1638940), (56069, 1452740), (59020, 1380103), (72637, 1121380), (76460, 1065311), (81947, 993980), (86260, 944281), (93860, 867821), (99398, 819470), (112138, 726370), (145274, 560690), (163894, 496990), (198796, 409735), (224276, 363185), (248495, 327788), (280345, 290548)]