254946020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1657}}^1$

素因数の和:1837

約数の個数: 72

約数和(自身を含む): 627141816

約数和(自身を除く): 372195796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 314, 490, 628, 785, 980, 1099, 1570, 1657, 2198, 3140, 3314, 4396, 5495, 6628, 7693, 8285, 10990, 11599, 15386, 16570, 21980, 23198, 30772, 33140, 38465, 46396, 57995, 76930, 81193, 115990, 153860, 162386, 231980, 260149, 324772, 405965, 520298, 811930, 1040596, 1300745, 1623860, 1821043, 2601490, 3642086, 5202980, 7284172, 9105215, 12747301, 18210430, 25494602, 36420860, 50989204, 63736505, 127473010, 254946020]

約数ペア:

[(1, 254946020), (2, 127473010), (4, 63736505), (5, 50989204), (7, 36420860), (10, 25494602), (14, 18210430), (20, 12747301), (28, 9105215), (35, 7284172), (49, 5202980), (70, 3642086), (98, 2601490), (140, 1821043), (157, 1623860), (196, 1300745), (245, 1040596), (314, 811930), (490, 520298), (628, 405965), (785, 324772), (980, 260149), (1099, 231980), (1570, 162386), (1657, 153860), (2198, 115990), (3140, 81193), (3314, 76930), (4396, 57995), (5495, 46396), (6628, 38465), (7693, 33140), (8285, 30772), (10990, 23198), (11599, 21980), (15386, 16570)]