78967850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3919}}^1$

素因数の和:3975

約数の個数: 48

約数和(自身を含む): 163322880

約数和(自身を除く): 84355030

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 3919, 4030, 7838, 10075, 19595, 20150, 39190, 50947, 97975, 101894, 121489, 195950, 242978, 254735, 509470, 607445, 1214890, 1273675, 1579357, 2547350, 3037225, 3158714, 6074450, 7896785, 15793570, 39483925, 78967850]

約数ペア:

[(1, 78967850), (2, 39483925), (5, 15793570), (10, 7896785), (13, 6074450), (25, 3158714), (26, 3037225), (31, 2547350), (50, 1579357), (62, 1273675), (65, 1214890), (130, 607445), (155, 509470), (310, 254735), (325, 242978), (403, 195950), (650, 121489), (775, 101894), (806, 97975), (1550, 50947), (2015, 39190), (3919, 20150), (4030, 19595), (7838, 10075)]