28341160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{419}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39698840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 419, 445, 712, 760, 838, 890, 1676, 1691, 1780, 2095, 3352, 3382, 3560, 4190, 6764, 7961, 8380, 8455, 13528, 15922, 16760, 16910, 31844, 33820, 37291, 39805, 63688, 67640, 74582, 79610, 149164, 159220, 186455, 298328, 318440, 372910, 708529, 745820, 1417058, 1491640, 2834116, 3542645, 5668232, 7085290, 14170580, 28341160]

約数ペア:

[(1, 28341160), (2, 14170580), (4, 7085290), (5, 5668232), (8, 3542645), (10, 2834116), (19, 1491640), (20, 1417058), (38, 745820), (40, 708529), (76, 372910), (89, 318440), (95, 298328), (152, 186455), (178, 159220), (190, 149164), (356, 79610), (380, 74582), (419, 67640), (445, 63688), (712, 39805), (760, 37291), (838, 33820), (890, 31844), (1676, 16910), (1691, 16760), (1780, 15922), (2095, 13528), (3352, 8455), (3382, 8380), (3560, 7961), (4190, 6764)]