20199194540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1657}}^1\times {\mathrm{1777}}^1$

素因数の和:3464

約数の個数: 96

約数和(自身を含む): 49525123200

約数和(自身を除く): 29325928660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1657, 1715, 1777, 3314, 3430, 3554, 6628, 6860, 7108, 8285, 8885, 11599, 12439, 16570, 17770, 23198, 24878, 33140, 35540, 46396, 49756, 57995, 62195, 81193, 87073, 115990, 124390, 162386, 174146, 231980, 248780, 324772, 348292, 405965, 435365, 568351, 609511, 811930, 870730, 1136702, 1219022, 1623860, 1741460, 2273404, 2438044, 2841755, 2944489, 3047555, 5683510, 5888978, 6095110, 11367020, 11777956, 12190220, 14722445, 20611423, 29444890, 41222846, 58889780, 82445692, 103057115, 144279961, 206114230, 288559922, 412228460, 577119844, 721399805, 1009959727, 1442799610, 2019919454, 2885599220, 4039838908, 5049798635, 10099597270, 20199194540]

約数ペア:

[(1, 20199194540), (2, 10099597270), (4, 5049798635), (5, 4039838908), (7, 2885599220), (10, 2019919454), (14, 1442799610), (20, 1009959727), (28, 721399805), (35, 577119844), (49, 412228460), (70, 288559922), (98, 206114230), (140, 144279961), (196, 103057115), (245, 82445692), (343, 58889780), (490, 41222846), (686, 29444890), (980, 20611423), (1372, 14722445), (1657, 12190220), (1715, 11777956), (1777, 11367020), (3314, 6095110), (3430, 5888978), (3554, 5683510), (6628, 3047555), (6860, 2944489), (7108, 2841755), (8285, 2438044), (8885, 2273404), (11599, 1741460), (12439, 1623860), (16570, 1219022), (17770, 1136702), (23198, 870730), (24878, 811930), (33140, 609511), (35540, 568351), (46396, 435365), (49756, 405965), (57995, 348292), (62195, 324772), (81193, 248780), (87073, 231980), (115990, 174146), (124390, 162386)]