11987720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^3\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 29127600

約数和(自身を除く): 17139880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 289, 305, 340, 488, 578, 610, 680, 1037, 1156, 1220, 1445, 2074, 2312, 2440, 2890, 4148, 4913, 5185, 5780, 8296, 9826, 10370, 11560, 17629, 19652, 20740, 24565, 35258, 39304, 41480, 49130, 70516, 88145, 98260, 141032, 176290, 196520, 299693, 352580, 599386, 705160, 1198772, 1498465, 2397544, 2996930, 5993860, 11987720]

約数ペア:

[(1, 11987720), (2, 5993860), (4, 2996930), (5, 2397544), (8, 1498465), (10, 1198772), (17, 705160), (20, 599386), (34, 352580), (40, 299693), (61, 196520), (68, 176290), (85, 141032), (122, 98260), (136, 88145), (170, 70516), (244, 49130), (289, 41480), (305, 39304), (340, 35258), (488, 24565), (578, 20740), (610, 19652), (680, 17629), (1037, 11560), (1156, 10370), (1220, 9826), (1445, 8296), (2074, 5780), (2312, 5185), (2440, 4913), (2890, 4148)]