253180720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7853}}^1$

素因数の和:7910

約数の個数: 80

約数和(自身を含む): 654458112

約数和(自身を除く): 401277392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 7853, 8060, 15706, 16120, 31412, 32240, 39265, 62824, 78530, 102089, 125648, 157060, 204178, 243443, 314120, 408356, 486886, 510445, 628240, 816712, 973772, 1020890, 1217215, 1633424, 1947544, 2041780, 2434430, 3164759, 3895088, 4083560, 4868860, 6329518, 8167120, 9737720, 12659036, 15823795, 19475440, 25318072, 31647590, 50636144, 63295180, 126590360, 253180720]

約数ペア:

[(1, 253180720), (2, 126590360), (4, 63295180), (5, 50636144), (8, 31647590), (10, 25318072), (13, 19475440), (16, 15823795), (20, 12659036), (26, 9737720), (31, 8167120), (40, 6329518), (52, 4868860), (62, 4083560), (65, 3895088), (80, 3164759), (104, 2434430), (124, 2041780), (130, 1947544), (155, 1633424), (208, 1217215), (248, 1020890), (260, 973772), (310, 816712), (403, 628240), (496, 510445), (520, 486886), (620, 408356), (806, 314120), (1040, 243443), (1240, 204178), (1612, 157060), (2015, 125648), (2480, 102089), (3224, 78530), (4030, 62824), (6448, 39265), (7853, 32240), (8060, 31412), (15706, 16120)]