81607120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3389}}^1$

素因数の和:3452

約数の個数: 80

約数和(自身を含む): 221950080

約数和(自身を除く): 140342960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3389, 3440, 4816, 6020, 6778, 12040, 13556, 16945, 23723, 24080, 27112, 33890, 47446, 54224, 67780, 94892, 118615, 135560, 145727, 189784, 237230, 271120, 291454, 379568, 474460, 582908, 728635, 948920, 1020089, 1165816, 1457270, 1897840, 2040178, 2331632, 2914540, 4080356, 5100445, 5829080, 8160712, 10200890, 11658160, 16321424, 20401780, 40803560, 81607120]

約数ペア:

[(1, 81607120), (2, 40803560), (4, 20401780), (5, 16321424), (7, 11658160), (8, 10200890), (10, 8160712), (14, 5829080), (16, 5100445), (20, 4080356), (28, 2914540), (35, 2331632), (40, 2040178), (43, 1897840), (56, 1457270), (70, 1165816), (80, 1020089), (86, 948920), (112, 728635), (140, 582908), (172, 474460), (215, 379568), (280, 291454), (301, 271120), (344, 237230), (430, 189784), (560, 145727), (602, 135560), (688, 118615), (860, 94892), (1204, 67780), (1505, 54224), (1720, 47446), (2408, 33890), (3010, 27112), (3389, 24080), (3440, 23723), (4816, 16945), (6020, 13556), (6778, 12040)]