21456009720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{839437}}^1$

素因数の和:839525

約数の個数: 96

約数和(自身を含む): 70714257120

約数和(自身を除く): 49258247400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 852, 1065, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 4260, 5112, 6390, 8520, 12780, 25560, 839437, 1678874, 2518311, 3357748, 4197185, 5036622, 6715496, 7554933, 8394370, 10073244, 12591555, 15109866, 16788740, 20146488, 25183110, 30219732, 33577480, 37774665, 50366220, 59600027, 60439464, 75549330, 100732440, 119200054, 151098660, 178800081, 238400108, 298000135, 302197320, 357600162, 476800216, 536400243, 596000270, 715200324, 894000405, 1072800486, 1192000540, 1430400648, 1788000810, 2145600972, 2384001080, 2682001215, 3576001620, 4291201944, 5364002430, 7152003240, 10728004860, 21456009720]

約数ペア:

[(1, 21456009720), (2, 10728004860), (3, 7152003240), (4, 5364002430), (5, 4291201944), (6, 3576001620), (8, 2682001215), (9, 2384001080), (10, 2145600972), (12, 1788000810), (15, 1430400648), (18, 1192000540), (20, 1072800486), (24, 894000405), (30, 715200324), (36, 596000270), (40, 536400243), (45, 476800216), (60, 357600162), (71, 302197320), (72, 298000135), (90, 238400108), (120, 178800081), (142, 151098660), (180, 119200054), (213, 100732440), (284, 75549330), (355, 60439464), (360, 59600027), (426, 50366220), (568, 37774665), (639, 33577480), (710, 30219732), (852, 25183110), (1065, 20146488), (1278, 16788740), (1420, 15109866), (1704, 12591555), (2130, 10073244), (2556, 8394370), (2840, 7554933), (3195, 6715496), (4260, 5036622), (5112, 4197185), (6390, 3357748), (8520, 2518311), (12780, 1678874), (25560, 839437)]