660855520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:373

約数の個数: 192

約数和(自身を含む): 1788950016

約数和(自身を除く): 1128094496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 37, 40, 52, 62, 65, 74, 80, 104, 124, 130, 148, 155, 160, 185, 208, 248, 260, 277, 296, 310, 370, 403, 416, 481, 496, 520, 554, 592, 620, 740, 806, 962, 992, 1040, 1108, 1147, 1184, 1240, 1385, 1480, 1612, 1924, 2015, 2080, 2216, 2294, 2405, 2480, 2770, 2960, 3224, 3601, 3848, 4030, 4432, 4588, 4810, 4960, 5540, 5735, 5920, 6448, 7202, 7696, 8060, 8587, 8864, 9176, 9620, 10249, 11080, 11470, 12896, 14404, 14911, 15392, 16120, 17174, 18005, 18352, 19240, 20498, 22160, 22940, 28808, 29822, 32240, 34348, 36010, 36704, 38480, 40996, 42935, 44320, 45880, 51245, 57616, 59644, 64480, 68696, 72020, 74555, 76960, 81992, 85870, 91760, 102490, 111631, 115232, 119288, 133237, 137392, 144040, 149110, 163984, 171740, 183520, 204980, 223262, 238576, 266474, 274784, 288080, 298220, 317719, 327968, 343480, 409960, 446524, 477152, 532948, 558155, 576160, 596440, 635438, 666185, 686960, 819920, 893048, 1065896, 1116310, 1192880, 1270876, 1332370, 1373920, 1588595, 1639840, 1786096, 2131792, 2232620, 2385760, 2541752, 2664740, 3177190, 3572192, 4130347, 4263584, 4465240, 5083504, 5329480, 6354380, 8260694, 8930480, 10167008, 10658960, 12708760, 16521388, 17860960, 20651735, 21317920, 25417520, 33042776, 41303470, 50835040, 66085552, 82606940, 132171104, 165213880, 330427760, 660855520]

約数ペア:

[(1, 660855520), (2, 330427760), (4, 165213880), (5, 132171104), (8, 82606940), (10, 66085552), (13, 50835040), (16, 41303470), (20, 33042776), (26, 25417520), (31, 21317920), (32, 20651735), (37, 17860960), (40, 16521388), (52, 12708760), (62, 10658960), (65, 10167008), (74, 8930480), (80, 8260694), (104, 6354380), (124, 5329480), (130, 5083504), (148, 4465240), (155, 4263584), (160, 4130347), (185, 3572192), (208, 3177190), (248, 2664740), (260, 2541752), (277, 2385760), (296, 2232620), (310, 2131792), (370, 1786096), (403, 1639840), (416, 1588595), (481, 1373920), (496, 1332370), (520, 1270876), (554, 1192880), (592, 1116310), (620, 1065896), (740, 893048), (806, 819920), (962, 686960), (992, 666185), (1040, 635438), (1108, 596440), (1147, 576160), (1184, 558155), (1240, 532948), (1385, 477152), (1480, 446524), (1612, 409960), (1924, 343480), (2015, 327968), (2080, 317719), (2216, 298220), (2294, 288080), (2405, 274784), (2480, 266474), (2770, 238576), (2960, 223262), (3224, 204980), (3601, 183520), (3848, 171740), (4030, 163984), (4432, 149110), (4588, 144040), (4810, 137392), (4960, 133237), (5540, 119288), (5735, 115232), (5920, 111631), (6448, 102490), (7202, 91760), (7696, 85870), (8060, 81992), (8587, 76960), (8864, 74555), (9176, 72020), (9620, 68696), (10249, 64480), (11080, 59644), (11470, 57616), (12896, 51245), (14404, 45880), (14911, 44320), (15392, 42935), (16120, 40996), (17174, 38480), (18005, 36704), (18352, 36010), (19240, 34348), (20498, 32240), (22160, 29822), (22940, 28808)]