28180040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5297}}^1$

素因数の和:5334

約数の個数: 64

約数和(自身を含む): 76291200

約数和(自身を除く): 48111160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5297, 5320, 10594, 21188, 26485, 37079, 42376, 52970, 74158, 100643, 105940, 148316, 185395, 201286, 211880, 296632, 370790, 402572, 503215, 704501, 741580, 805144, 1006430, 1409002, 1483160, 2012860, 2818004, 3522505, 4025720, 5636008, 7045010, 14090020, 28180040]

約数ペア:

[(1, 28180040), (2, 14090020), (4, 7045010), (5, 5636008), (7, 4025720), (8, 3522505), (10, 2818004), (14, 2012860), (19, 1483160), (20, 1409002), (28, 1006430), (35, 805144), (38, 741580), (40, 704501), (56, 503215), (70, 402572), (76, 370790), (95, 296632), (133, 211880), (140, 201286), (152, 185395), (190, 148316), (266, 105940), (280, 100643), (380, 74158), (532, 52970), (665, 42376), (760, 37079), (1064, 26485), (1330, 21188), (2660, 10594), (5297, 5320)]