817382020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:414

約数の個数: 144

約数和(自身を含む): 2147160960

約数和(自身を除く): 1329778940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 179, 182, 193, 260, 338, 358, 364, 386, 455, 676, 716, 772, 845, 895, 910, 965, 1183, 1253, 1351, 1690, 1790, 1820, 1930, 2327, 2366, 2506, 2509, 2702, 3380, 3580, 3860, 4654, 4732, 5012, 5018, 5404, 5915, 6265, 6755, 9308, 10036, 11635, 11830, 12530, 12545, 13510, 16289, 17563, 23270, 23660, 25060, 25090, 27020, 30251, 32578, 32617, 34547, 35126, 46540, 50180, 60502, 65156, 65234, 69094, 70252, 81445, 87815, 121004, 130468, 138188, 151255, 162890, 163085, 172735, 175630, 211757, 228319, 241829, 302510, 325780, 326170, 345470, 351260, 423514, 449111, 456638, 483658, 605020, 652340, 690940, 847028, 898222, 913276, 967316, 1058785, 1141595, 1209145, 1796444, 2117570, 2245555, 2283190, 2418290, 3143777, 4235140, 4491110, 4566380, 4836580, 5838443, 6287554, 8982220, 11676886, 12575108, 15718885, 23353772, 29192215, 31437770, 40869101, 58384430, 62875540, 81738202, 116768860, 163476404, 204345505, 408691010, 817382020]

約数ペア:

[(1, 817382020), (2, 408691010), (4, 204345505), (5, 163476404), (7, 116768860), (10, 81738202), (13, 62875540), (14, 58384430), (20, 40869101), (26, 31437770), (28, 29192215), (35, 23353772), (52, 15718885), (65, 12575108), (70, 11676886), (91, 8982220), (130, 6287554), (140, 5838443), (169, 4836580), (179, 4566380), (182, 4491110), (193, 4235140), (260, 3143777), (338, 2418290), (358, 2283190), (364, 2245555), (386, 2117570), (455, 1796444), (676, 1209145), (716, 1141595), (772, 1058785), (845, 967316), (895, 913276), (910, 898222), (965, 847028), (1183, 690940), (1253, 652340), (1351, 605020), (1690, 483658), (1790, 456638), (1820, 449111), (1930, 423514), (2327, 351260), (2366, 345470), (2506, 326170), (2509, 325780), (2702, 302510), (3380, 241829), (3580, 228319), (3860, 211757), (4654, 175630), (4732, 172735), (5012, 163085), (5018, 162890), (5404, 151255), (5915, 138188), (6265, 130468), (6755, 121004), (9308, 87815), (10036, 81445), (11635, 70252), (11830, 69094), (12530, 65234), (12545, 65156), (13510, 60502), (16289, 50180), (17563, 46540), (23270, 35126), (23660, 34547), (25060, 32617), (25090, 32578), (27020, 30251)]