28247240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1277}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 73612800

約数和(自身を除く): 45365560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1277, 1580, 2212, 2554, 2765, 3160, 4424, 5108, 5530, 6385, 8939, 10216, 11060, 12770, 17878, 22120, 25540, 35756, 44695, 51080, 71512, 89390, 100883, 178780, 201766, 357560, 403532, 504415, 706181, 807064, 1008830, 1412362, 2017660, 2824724, 3530905, 4035320, 5649448, 7061810, 14123620, 28247240]

約数ペア:

[(1, 28247240), (2, 14123620), (4, 7061810), (5, 5649448), (7, 4035320), (8, 3530905), (10, 2824724), (14, 2017660), (20, 1412362), (28, 1008830), (35, 807064), (40, 706181), (56, 504415), (70, 403532), (79, 357560), (140, 201766), (158, 178780), (280, 100883), (316, 89390), (395, 71512), (553, 51080), (632, 44695), (790, 35756), (1106, 25540), (1277, 22120), (1580, 17878), (2212, 12770), (2554, 11060), (2765, 10216), (3160, 8939), (4424, 6385), (5108, 5530)]