1899919420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{587}}^1$

素因数の和:1043

約数の個数: 96

約数和(自身を含む): 4654702080

約数和(自身を除く): 2754782660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 379, 427, 587, 610, 758, 854, 1174, 1220, 1516, 1708, 1895, 2135, 2348, 2653, 2935, 3790, 4109, 4270, 5306, 5870, 7580, 8218, 8540, 10612, 11740, 13265, 16436, 20545, 23119, 26530, 35807, 41090, 46238, 53060, 71614, 82180, 92476, 115595, 143228, 161833, 179035, 222473, 231190, 250649, 323666, 358070, 444946, 462380, 501298, 647332, 716140, 809165, 889892, 1002596, 1112365, 1253245, 1557311, 1618330, 2224730, 2506490, 3114622, 3236660, 4449460, 5012980, 6229244, 7786555, 13570853, 15573110, 27141706, 31146220, 54283412, 67854265, 94995971, 135708530, 189991942, 271417060, 379983884, 474979855, 949959710, 1899919420]

約数ペア:

[(1, 1899919420), (2, 949959710), (4, 474979855), (5, 379983884), (7, 271417060), (10, 189991942), (14, 135708530), (20, 94995971), (28, 67854265), (35, 54283412), (61, 31146220), (70, 27141706), (122, 15573110), (140, 13570853), (244, 7786555), (305, 6229244), (379, 5012980), (427, 4449460), (587, 3236660), (610, 3114622), (758, 2506490), (854, 2224730), (1174, 1618330), (1220, 1557311), (1516, 1253245), (1708, 1112365), (1895, 1002596), (2135, 889892), (2348, 809165), (2653, 716140), (2935, 647332), (3790, 501298), (4109, 462380), (4270, 444946), (5306, 358070), (5870, 323666), (7580, 250649), (8218, 231190), (8540, 222473), (10612, 179035), (11740, 161833), (13265, 143228), (16436, 115595), (20545, 92476), (23119, 82180), (26530, 71614), (35807, 53060), (41090, 46238)]