640147904460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{12959}}^1\times {\mathrm{5839}}^1$

素因数の和:18860

約数の個数: 144

約数和(自身を含む): 1983589171200

約数和(自身を除く): 1343441266740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 5839, 8460, 11678, 12959, 17517, 23356, 25918, 29195, 35034, 38877, 51836, 52551, 58390, 64795, 70068, 77754, 87585, 105102, 116631, 116780, 129590, 155508, 175170, 194385, 210204, 233262, 259180, 262755, 274433, 350340, 388770, 466524, 525510, 548866, 583155, 609073, 777540, 823299, 1051020, 1097732, 1166310, 1218146, 1372165, 1646598, 1827219, 2332620, 2436292, 2469897, 2744330, 3045365, 3293196, 3654438, 4116495, 4939794, 5481657, 5488660, 6090730, 7308876, 8232990, 9136095, 9879588, 10963314, 12181460, 12349485, 16465980, 18272190, 21926628, 24698970, 27408285, 36544380, 49397940, 54816570, 75667601, 109633140, 151335202, 227002803, 302670404, 378338005, 454005606, 681008409, 756676010, 908011212, 1135014015, 1362016818, 1513352020, 2270028030, 2724033636, 3405042045, 3556377247, 4540056060, 6810084090, 7112754494, 10669131741, 13620168180, 14225508988, 17781886235, 21338263482, 32007395223, 35563772470, 42676526964, 53345658705, 64014790446, 71127544940, 106691317410, 128029580892, 160036976115, 213382634820, 320073952230, 640147904460]

約数ペア:

[(1, 640147904460), (2, 320073952230), (3, 213382634820), (4, 160036976115), (5, 128029580892), (6, 106691317410), (9, 71127544940), (10, 64014790446), (12, 53345658705), (15, 42676526964), (18, 35563772470), (20, 32007395223), (30, 21338263482), (36, 17781886235), (45, 14225508988), (47, 13620168180), (60, 10669131741), (90, 7112754494), (94, 6810084090), (141, 4540056060), (180, 3556377247), (188, 3405042045), (235, 2724033636), (282, 2270028030), (423, 1513352020), (470, 1362016818), (564, 1135014015), (705, 908011212), (846, 756676010), (940, 681008409), (1410, 454005606), (1692, 378338005), (2115, 302670404), (2820, 227002803), (4230, 151335202), (5839, 109633140), (8460, 75667601), (11678, 54816570), (12959, 49397940), (17517, 36544380), (23356, 27408285), (25918, 24698970), (29195, 21926628), (35034, 18272190), (38877, 16465980), (51836, 12349485), (52551, 12181460), (58390, 10963314), (64795, 9879588), (70068, 9136095), (77754, 8232990), (87585, 7308876), (105102, 6090730), (116631, 5488660), (116780, 5481657), (129590, 4939794), (155508, 4116495), (175170, 3654438), (194385, 3293196), (210204, 3045365), (233262, 2744330), (259180, 2469897), (262755, 2436292), (274433, 2332620), (350340, 1827219), (388770, 1646598), (466524, 1372165), (525510, 1218146), (548866, 1166310), (583155, 1097732), (609073, 1051020), (777540, 823299)]