About the Number

389741940

389741939 ← → 389741941

2進数表記:10111001110101111110101110100

漢数字表記:三億八千九百七十四万千九百四十

素因数分解:

2 2 × 3 2 × 5 1 × 7 1 × 283 1 × 1093 1

素因数の和:1398
約数の個数: 144
約数和(自身を含む): 1357120128
約数和(自身を除く): 967378188

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 283, 315, 420, 566, 630, 849, 1093, 1132, 1260, 1415, 1698, 1981, 2186, 2547, 2830, 3279, 3396, 3962, 4245, 4372, 5094, 5465, 5660, 5943, 6558, 7651, 7924, 8490, 9837, 9905, 10188, 10930, 11886, 12735, 13116, 15302, 16395, 16980, 17829, 19674, 19810, 21860, 22953, 23772, 25470, 29715, 30604, 32790, 35658, 38255, 39348, 39620, 45906, 49185, 50940, 59430, 65580, 68859, 71316, 76510, 89145, 91812, 98370, 114765, 118860, 137718, 153020, 178290, 196740, 229530, 275436, 309319, 344295, 356580, 459060, 618638, 688590, 927957, 1237276, 1377180, 1546595, 1855914, 2165233, 2783871, 3093190, 3711828, 4330466, 4639785, 5567742, 6186380, 6495699, 8660932, 9279570, 10826165, 11135484, 12991398, 13919355, 18559140, 19487097, 21652330, 25982796, 27838710, 32478495, 38974194, 43304660, 55677420, 64956990, 77948388, 97435485, 129913980, 194870970, 389741940]

約数ペア:
[(1, 389741940), (2, 194870970), (3, 129913980), (4, 97435485), (5, 77948388), (6, 64956990), (7, 55677420), (9, 43304660), (10, 38974194), (12, 32478495), (14, 27838710), (15, 25982796), (18, 21652330), (20, 19487097), (21, 18559140), (28, 13919355), (30, 12991398), (35, 11135484), (36, 10826165), (42, 9279570), (45, 8660932), (60, 6495699), (63, 6186380), (70, 5567742), (84, 4639785), (90, 4330466), (105, 3711828), (126, 3093190), (140, 2783871), (180, 2165233), (210, 1855914), (252, 1546595), (283, 1377180), (315, 1237276), (420, 927957), (566, 688590), (630, 618638), (849, 459060), (1093, 356580), (1132, 344295), (1260, 309319), (1415, 275436), (1698, 229530), (1981, 196740), (2186, 178290), (2547, 153020), (2830, 137718), (3279, 118860), (3396, 114765), (3962, 98370), (4245, 91812), (4372, 89145), (5094, 76510), (5465, 71316), (5660, 68859), (5943, 65580), (6558, 59430), (7651, 50940), (7924, 49185), (8490, 45906), (9837, 39620), (9905, 39348), (10188, 38255), (10930, 35658), (11886, 32790), (12735, 30604), (13116, 29715), (15302, 25470), (16395, 23772), (16980, 22953), (17829, 21860), (19674, 19810)]

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