20131709740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 46284128352

約数和(自身を除く): 26152418612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 107, 170, 197, 212, 214, 265, 340, 394, 428, 530, 535, 788, 901, 985, 1060, 1070, 1802, 1819, 1970, 2140, 2809, 3349, 3604, 3638, 3940, 4505, 5618, 5671, 6698, 7276, 9010, 9095, 10441, 11236, 11342, 13396, 14045, 16745, 18020, 18190, 20882, 21079, 22684, 28090, 28355, 33490, 36380, 41764, 42158, 47753, 52205, 56180, 56710, 66980, 84316, 95506, 96407, 104410, 105395, 113420, 177497, 191012, 192814, 208820, 210790, 238765, 300563, 354994, 358343, 385628, 421580, 477530, 482035, 553373, 601126, 709988, 716686, 887485, 955060, 964070, 1106746, 1117187, 1202252, 1433372, 1502815, 1774970, 1791715, 1928140, 2213492, 2234374, 2766865, 3005630, 3549940, 3583430, 4468748, 5109571, 5533730, 5585935, 6011260, 7166860, 9407341, 10219142, 11067460, 11171870, 18814682, 18992179, 20438284, 22343740, 25547855, 37629364, 37984358, 47036705, 51095710, 59210911, 75968716, 94073410, 94960895, 102191420, 118421822, 188146820, 189921790, 236843644, 296054555, 379843580, 592109110, 1006585487, 1184218220, 2013170974, 4026341948, 5032927435, 10065854870, 20131709740]

約数ペア:

[(1, 20131709740), (2, 10065854870), (4, 5032927435), (5, 4026341948), (10, 2013170974), (17, 1184218220), (20, 1006585487), (34, 592109110), (53, 379843580), (68, 296054555), (85, 236843644), (106, 189921790), (107, 188146820), (170, 118421822), (197, 102191420), (212, 94960895), (214, 94073410), (265, 75968716), (340, 59210911), (394, 51095710), (428, 47036705), (530, 37984358), (535, 37629364), (788, 25547855), (901, 22343740), (985, 20438284), (1060, 18992179), (1070, 18814682), (1802, 11171870), (1819, 11067460), (1970, 10219142), (2140, 9407341), (2809, 7166860), (3349, 6011260), (3604, 5585935), (3638, 5533730), (3940, 5109571), (4505, 4468748), (5618, 3583430), (5671, 3549940), (6698, 3005630), (7276, 2766865), (9010, 2234374), (9095, 2213492), (10441, 1928140), (11236, 1791715), (11342, 1774970), (13396, 1502815), (14045, 1433372), (16745, 1202252), (18020, 1117187), (18190, 1106746), (20882, 964070), (21079, 955060), (22684, 887485), (28090, 716686), (28355, 709988), (33490, 601126), (36380, 553373), (41764, 482035), (42158, 477530), (47753, 421580), (52205, 385628), (56180, 358343), (56710, 354994), (66980, 300563), (84316, 238765), (95506, 210790), (96407, 208820), (104410, 192814), (105395, 191012), (113420, 177497)]