28784881980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{39989}}^1$

素因数の和:40081

約数の個数: 192

約数和(自身を含む): 94593945600

約数和(自身を除く): 65809063620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 43, 45, 54, 60, 62, 86, 90, 93, 108, 124, 129, 135, 155, 172, 180, 186, 215, 258, 270, 279, 310, 372, 387, 430, 465, 516, 540, 558, 620, 645, 774, 837, 860, 930, 1116, 1161, 1290, 1333, 1395, 1548, 1674, 1860, 1935, 2322, 2580, 2666, 2790, 3348, 3870, 3999, 4185, 4644, 5332, 5580, 5805, 6665, 7740, 7998, 8370, 11610, 11997, 13330, 15996, 16740, 19995, 23220, 23994, 26660, 35991, 39989, 39990, 47988, 59985, 71982, 79978, 79980, 119967, 119970, 143964, 159956, 179955, 199945, 239934, 239940, 359901, 359910, 399890, 479868, 599835, 719802, 719820, 799780, 1079703, 1199670, 1239659, 1439604, 1719527, 1799505, 2159406, 2399340, 2479318, 3439054, 3599010, 3718977, 4318812, 4958636, 5158581, 5398515, 6198295, 6878108, 7198020, 7437954, 8597635, 10317162, 10797030, 11156931, 12396590, 14875908, 15475743, 17195270, 18594885, 20634324, 21594060, 22313862, 24793180, 25792905, 30951486, 33470793, 34390540, 37189770, 44627724, 46427229, 51585810, 53305337, 55784655, 61902972, 66941586, 74379540, 77378715, 92854458, 103171620, 106610674, 111569310, 133883172, 154757430, 159916011, 167353965, 185708916, 213221348, 223138620, 232136145, 266526685, 309514860, 319832022, 334707930, 464272290, 479748033, 533053370, 639664044, 669415860, 799580055, 928544580, 959496066, 1066106740, 1439244099, 1599160110, 1918992132, 2398740165, 2878488198, 3198320220, 4797480330, 5756976396, 7196220495, 9594960660, 14392440990, 28784881980]

約数ペア:

[(1, 28784881980), (2, 14392440990), (3, 9594960660), (4, 7196220495), (5, 5756976396), (6, 4797480330), (9, 3198320220), (10, 2878488198), (12, 2398740165), (15, 1918992132), (18, 1599160110), (20, 1439244099), (27, 1066106740), (30, 959496066), (31, 928544580), (36, 799580055), (43, 669415860), (45, 639664044), (54, 533053370), (60, 479748033), (62, 464272290), (86, 334707930), (90, 319832022), (93, 309514860), (108, 266526685), (124, 232136145), (129, 223138620), (135, 213221348), (155, 185708916), (172, 167353965), (180, 159916011), (186, 154757430), (215, 133883172), (258, 111569310), (270, 106610674), (279, 103171620), (310, 92854458), (372, 77378715), (387, 74379540), (430, 66941586), (465, 61902972), (516, 55784655), (540, 53305337), (558, 51585810), (620, 46427229), (645, 44627724), (774, 37189770), (837, 34390540), (860, 33470793), (930, 30951486), (1116, 25792905), (1161, 24793180), (1290, 22313862), (1333, 21594060), (1395, 20634324), (1548, 18594885), (1674, 17195270), (1860, 15475743), (1935, 14875908), (2322, 12396590), (2580, 11156931), (2666, 10797030), (2790, 10317162), (3348, 8597635), (3870, 7437954), (3999, 7198020), (4185, 6878108), (4644, 6198295), (5332, 5398515), (5580, 5158581), (5805, 4958636), (6665, 4318812), (7740, 3718977), (7998, 3599010), (8370, 3439054), (11610, 2479318), (11997, 2399340), (13330, 2159406), (15996, 1799505), (16740, 1719527), (19995, 1439604), (23220, 1239659), (23994, 1199670), (26660, 1079703), (35991, 799780), (39989, 719820), (39990, 719802), (47988, 599835), (59985, 479868), (71982, 399890), (79978, 359910), (79980, 359901), (119967, 239940), (119970, 239934), (143964, 199945), (159956, 179955)]