1312361440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20353}}^1$

素因数の和:20412

約数の個数: 96

約数和(自身を含む): 3446827776

約数和(自身を除く): 2134466336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 3224, 4030, 4960, 6448, 8060, 12896, 16120, 20353, 32240, 40706, 64480, 81412, 101765, 162824, 203530, 264589, 325648, 407060, 529178, 630943, 651296, 814120, 1058356, 1261886, 1322945, 1628240, 2116712, 2523772, 2645890, 3154715, 3256480, 4233424, 5047544, 5291780, 6309430, 8202259, 8466848, 10095088, 10583560, 12618860, 16404518, 20190176, 21167120, 25237720, 32809036, 41011295, 42334240, 50475440, 65618072, 82022590, 100950880, 131236144, 164045180, 262472288, 328090360, 656180720, 1312361440]

約数ペア:

[(1, 1312361440), (2, 656180720), (4, 328090360), (5, 262472288), (8, 164045180), (10, 131236144), (13, 100950880), (16, 82022590), (20, 65618072), (26, 50475440), (31, 42334240), (32, 41011295), (40, 32809036), (52, 25237720), (62, 21167120), (65, 20190176), (80, 16404518), (104, 12618860), (124, 10583560), (130, 10095088), (155, 8466848), (160, 8202259), (208, 6309430), (248, 5291780), (260, 5047544), (310, 4233424), (403, 3256480), (416, 3154715), (496, 2645890), (520, 2523772), (620, 2116712), (806, 1628240), (992, 1322945), (1040, 1261886), (1240, 1058356), (1612, 814120), (2015, 651296), (2080, 630943), (2480, 529178), (3224, 407060), (4030, 325648), (4960, 264589), (6448, 203530), (8060, 162824), (12896, 101765), (16120, 81412), (20353, 64480), (32240, 40706)]