1818806500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1311

約数の個数: 144

約数和(自身を含む): 4700417904

約数和(自身を除く): 2881611404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 61, 70, 98, 100, 122, 125, 140, 175, 196, 244, 245, 250, 305, 350, 427, 490, 500, 610, 700, 854, 875, 980, 1217, 1220, 1225, 1525, 1708, 1750, 2135, 2434, 2450, 2989, 3050, 3500, 4270, 4868, 4900, 5978, 6085, 6100, 6125, 7625, 8519, 8540, 10675, 11956, 12170, 12250, 14945, 15250, 17038, 21350, 24340, 24500, 29890, 30425, 30500, 34076, 42595, 42700, 53375, 59633, 59780, 60850, 74237, 74725, 85190, 106750, 119266, 121700, 148474, 149450, 152125, 170380, 212975, 213500, 238532, 296948, 298165, 298900, 304250, 371185, 373625, 425950, 519659, 596330, 608500, 742370, 747250, 851900, 1039318, 1064875, 1192660, 1484740, 1490825, 1494500, 1855925, 2078636, 2129750, 2598295, 2981650, 3637613, 3711850, 4259500, 5196590, 5963300, 7275226, 7423700, 7454125, 9279625, 10393180, 12991475, 14550452, 14908250, 18188065, 18559250, 25982950, 29816500, 36376130, 37118500, 51965900, 64957375, 72752260, 90940325, 129914750, 181880650, 259829500, 363761300, 454701625, 909403250, 1818806500]

約数ペア:

[(1, 1818806500), (2, 909403250), (4, 454701625), (5, 363761300), (7, 259829500), (10, 181880650), (14, 129914750), (20, 90940325), (25, 72752260), (28, 64957375), (35, 51965900), (49, 37118500), (50, 36376130), (61, 29816500), (70, 25982950), (98, 18559250), (100, 18188065), (122, 14908250), (125, 14550452), (140, 12991475), (175, 10393180), (196, 9279625), (244, 7454125), (245, 7423700), (250, 7275226), (305, 5963300), (350, 5196590), (427, 4259500), (490, 3711850), (500, 3637613), (610, 2981650), (700, 2598295), (854, 2129750), (875, 2078636), (980, 1855925), (1217, 1494500), (1220, 1490825), (1225, 1484740), (1525, 1192660), (1708, 1064875), (1750, 1039318), (2135, 851900), (2434, 747250), (2450, 742370), (2989, 608500), (3050, 596330), (3500, 519659), (4270, 425950), (4868, 373625), (4900, 371185), (5978, 304250), (6085, 298900), (6100, 298165), (6125, 296948), (7625, 238532), (8519, 213500), (8540, 212975), (10675, 170380), (11956, 152125), (12170, 149450), (12250, 148474), (14945, 121700), (15250, 119266), (17038, 106750), (21350, 85190), (24340, 74725), (24500, 74237), (29890, 60850), (30425, 59780), (30500, 59633), (34076, 53375), (42595, 42700)]