20113720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2689}}^1$

素因数の和:2728

約数の個数: 64

約数和(自身を含む): 52293600

約数和(自身を除く): 32179880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2689, 3740, 5378, 7480, 10756, 13445, 21512, 26890, 29579, 45713, 53780, 59158, 91426, 107560, 118316, 147895, 182852, 228565, 236632, 295790, 365704, 457130, 502843, 591580, 914260, 1005686, 1183160, 1828520, 2011372, 2514215, 4022744, 5028430, 10056860, 20113720]

約数ペア:

[(1, 20113720), (2, 10056860), (4, 5028430), (5, 4022744), (8, 2514215), (10, 2011372), (11, 1828520), (17, 1183160), (20, 1005686), (22, 914260), (34, 591580), (40, 502843), (44, 457130), (55, 365704), (68, 295790), (85, 236632), (88, 228565), (110, 182852), (136, 147895), (170, 118316), (187, 107560), (220, 91426), (340, 59158), (374, 53780), (440, 45713), (680, 29579), (748, 26890), (935, 21512), (1496, 13445), (1870, 10756), (2689, 7480), (3740, 5378)]