25181080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1996

約数の個数: 64

約数和(自身を含む): 63180000

約数和(自身を除く): 37998920

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 1949, 2584, 3230, 3898, 6460, 7796, 9745, 12920, 15592, 19490, 33133, 37031, 38980, 66266, 74062, 77960, 132532, 148124, 165665, 185155, 265064, 296248, 331330, 370310, 629527, 662660, 740620, 1259054, 1325320, 1481240, 2518108, 3147635, 5036216, 6295270, 12590540, 25181080]

約数ペア:

[(1, 25181080), (2, 12590540), (4, 6295270), (5, 5036216), (8, 3147635), (10, 2518108), (17, 1481240), (19, 1325320), (20, 1259054), (34, 740620), (38, 662660), (40, 629527), (68, 370310), (76, 331330), (85, 296248), (95, 265064), (136, 185155), (152, 165665), (170, 148124), (190, 132532), (323, 77960), (340, 74062), (380, 66266), (646, 38980), (680, 37031), (760, 33133), (1292, 19490), (1615, 15592), (1949, 12920), (2584, 9745), (3230, 7796), (3898, 6460)]