18787550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 39894768

約数和(自身を除く): 21107218

約数列:

[1, 2, 5, 10, 17, 23, 25, 31, 34, 46, 50, 62, 85, 115, 155, 170, 230, 310, 391, 425, 527, 575, 713, 775, 782, 850, 961, 1054, 1150, 1426, 1550, 1922, 1955, 2635, 3565, 3910, 4805, 5270, 7130, 9610, 9775, 12121, 13175, 16337, 17825, 19550, 22103, 24025, 24242, 26350, 32674, 35650, 44206, 48050, 60605, 81685, 110515, 121210, 163370, 221030, 303025, 375751, 408425, 552575, 606050, 751502, 816850, 1105150, 1878755, 3757510, 9393775, 18787550]

約数ペア:

[(1, 18787550), (2, 9393775), (5, 3757510), (10, 1878755), (17, 1105150), (23, 816850), (25, 751502), (31, 606050), (34, 552575), (46, 408425), (50, 375751), (62, 303025), (85, 221030), (115, 163370), (155, 121210), (170, 110515), (230, 81685), (310, 60605), (391, 48050), (425, 44206), (527, 35650), (575, 32674), (713, 26350), (775, 24242), (782, 24025), (850, 22103), (961, 19550), (1054, 17825), (1150, 16337), (1426, 13175), (1550, 12121), (1922, 9775), (1955, 9610), (2635, 7130), (3565, 5270), (3910, 4805)]