2019987044140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{20607907}}^1$

素因数の和:20607971

約数の個数: 72

約数和(自身を含む): 4751771426640

約数和(自身を除く): 2731784382500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 754, 845, 1508, 1690, 1885, 3380, 3770, 4901, 7540, 9802, 19604, 24505, 49010, 98020, 20607907, 41215814, 82431628, 103039535, 206079070, 267902791, 412158140, 535805582, 597629303, 1071611164, 1195258606, 1339513955, 2390517212, 2679027910, 2988146515, 3482736283, 5358055820, 5976293030, 6965472566, 7769180939, 11952586060, 13930945132, 15538361878, 17413681415, 31076723756, 34827362830, 38845904695, 69654725660, 77691809390, 100999352207, 155383618780, 201998704414, 403997408828, 504996761035, 1009993522070, 2019987044140]

約数ペア:

[(1, 2019987044140), (2, 1009993522070), (4, 504996761035), (5, 403997408828), (10, 201998704414), (13, 155383618780), (20, 100999352207), (26, 77691809390), (29, 69654725660), (52, 38845904695), (58, 34827362830), (65, 31076723756), (116, 17413681415), (130, 15538361878), (145, 13930945132), (169, 11952586060), (260, 7769180939), (290, 6965472566), (338, 5976293030), (377, 5358055820), (580, 3482736283), (676, 2988146515), (754, 2679027910), (845, 2390517212), (1508, 1339513955), (1690, 1195258606), (1885, 1071611164), (3380, 597629303), (3770, 535805582), (4901, 412158140), (7540, 267902791), (9802, 206079070), (19604, 103039535), (24505, 82431628), (49010, 41215814), (98020, 20607907)]