639421850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{32707}}^1$

素因数の和:32759

約数の個数: 48

約数和(自身を含む): 1314076608

約数和(自身を除く): 674654758

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1150, 1955, 3910, 9775, 19550, 32707, 65414, 163535, 327070, 556019, 752261, 817675, 1112038, 1504522, 1635350, 2780095, 3761305, 5560190, 7522610, 12788437, 13900475, 18806525, 25576874, 27800950, 37613050, 63942185, 127884370, 319710925, 639421850]

約数ペア:

[(1, 639421850), (2, 319710925), (5, 127884370), (10, 63942185), (17, 37613050), (23, 27800950), (25, 25576874), (34, 18806525), (46, 13900475), (50, 12788437), (85, 7522610), (115, 5560190), (170, 3761305), (230, 2780095), (391, 1635350), (425, 1504522), (575, 1112038), (782, 817675), (850, 752261), (1150, 556019), (1955, 327070), (3910, 163535), (9775, 65414), (19550, 32707)]