20844210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1777}}^1$

素因数の和:1827

約数の個数: 64

約数和(自身を含む): 55302912

約数和(自身を除く): 34458702

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 170, 230, 255, 345, 391, 510, 690, 782, 1173, 1777, 1955, 2346, 3554, 3910, 5331, 5865, 8885, 10662, 11730, 17770, 26655, 30209, 40871, 53310, 60418, 81742, 90627, 122613, 151045, 181254, 204355, 245226, 302090, 408710, 453135, 613065, 694807, 906270, 1226130, 1389614, 2084421, 3474035, 4168842, 6948070, 10422105, 20844210]

約数ペア:

[(1, 20844210), (2, 10422105), (3, 6948070), (5, 4168842), (6, 3474035), (10, 2084421), (15, 1389614), (17, 1226130), (23, 906270), (30, 694807), (34, 613065), (46, 453135), (51, 408710), (69, 302090), (85, 245226), (102, 204355), (115, 181254), (138, 151045), (170, 122613), (230, 90627), (255, 81742), (345, 60418), (391, 53310), (510, 40871), (690, 30209), (782, 26655), (1173, 17770), (1777, 11730), (1955, 10662), (2346, 8885), (3554, 5865), (3910, 5331)]