20299420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 25262180

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1129, 1798, 2258, 3596, 4495, 4516, 5645, 8990, 11290, 17980, 22580, 32741, 34999, 65482, 69998, 130964, 139996, 163705, 174995, 327410, 349990, 654820, 699980, 1014971, 2029942, 4059884, 5074855, 10149710, 20299420]

約数ペア:

[(1, 20299420), (2, 10149710), (4, 5074855), (5, 4059884), (10, 2029942), (20, 1014971), (29, 699980), (31, 654820), (58, 349990), (62, 327410), (116, 174995), (124, 163705), (145, 139996), (155, 130964), (290, 69998), (310, 65482), (580, 34999), (620, 32741), (899, 22580), (1129, 17980), (1798, 11290), (2258, 8990), (3596, 5645), (4495, 4516)]