311918180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:813

約数の個数: 96

約数和(自身を含む): 787401216

約数和(自身を除く): 475483036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 157, 161, 230, 314, 322, 460, 617, 628, 644, 785, 805, 1099, 1234, 1570, 1610, 2198, 2468, 3085, 3140, 3220, 3611, 4319, 4396, 5495, 6170, 7222, 8638, 10990, 12340, 14191, 14444, 17276, 18055, 21595, 21980, 25277, 28382, 36110, 43190, 50554, 56764, 70955, 72220, 86380, 96869, 99337, 101108, 126385, 141910, 193738, 198674, 252770, 283820, 387476, 397348, 484345, 496685, 505540, 678083, 968690, 993370, 1356166, 1937380, 1986740, 2227987, 2712332, 3390415, 4455974, 6780830, 8911948, 11139935, 13561660, 15595909, 22279870, 31191818, 44559740, 62383636, 77979545, 155959090, 311918180]

約数ペア:

[(1, 311918180), (2, 155959090), (4, 77979545), (5, 62383636), (7, 44559740), (10, 31191818), (14, 22279870), (20, 15595909), (23, 13561660), (28, 11139935), (35, 8911948), (46, 6780830), (70, 4455974), (92, 3390415), (115, 2712332), (140, 2227987), (157, 1986740), (161, 1937380), (230, 1356166), (314, 993370), (322, 968690), (460, 678083), (617, 505540), (628, 496685), (644, 484345), (785, 397348), (805, 387476), (1099, 283820), (1234, 252770), (1570, 198674), (1610, 193738), (2198, 141910), (2468, 126385), (3085, 101108), (3140, 99337), (3220, 96869), (3611, 86380), (4319, 72220), (4396, 70955), (5495, 56764), (6170, 50554), (7222, 43190), (8638, 36110), (10990, 28382), (12340, 25277), (14191, 21980), (14444, 21595), (17276, 18055)]