261795870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21871}}^1$

素因数の和:21910

約数の個数: 96

約数和(自身を含む): 818887680

約数和(自身を除く): 557091810

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 90, 95, 105, 114, 126, 133, 171, 190, 210, 266, 285, 315, 342, 399, 570, 630, 665, 798, 855, 1197, 1330, 1710, 1995, 2394, 3990, 5985, 11970, 21871, 43742, 65613, 109355, 131226, 153097, 196839, 218710, 306194, 328065, 393678, 415549, 459291, 656130, 765485, 831098, 918582, 984195, 1246647, 1377873, 1530970, 1968390, 2077745, 2296455, 2493294, 2755746, 2908843, 3739941, 4155490, 4592910, 5817686, 6233235, 6889365, 7479882, 8726529, 12466470, 13778730, 14544215, 17453058, 18699705, 26179587, 29088430, 37399410, 43632645, 52359174, 87265290, 130897935, 261795870]

約数ペア:

[(1, 261795870), (2, 130897935), (3, 87265290), (5, 52359174), (6, 43632645), (7, 37399410), (9, 29088430), (10, 26179587), (14, 18699705), (15, 17453058), (18, 14544215), (19, 13778730), (21, 12466470), (30, 8726529), (35, 7479882), (38, 6889365), (42, 6233235), (45, 5817686), (57, 4592910), (63, 4155490), (70, 3739941), (90, 2908843), (95, 2755746), (105, 2493294), (114, 2296455), (126, 2077745), (133, 1968390), (171, 1530970), (190, 1377873), (210, 1246647), (266, 984195), (285, 918582), (315, 831098), (342, 765485), (399, 656130), (570, 459291), (630, 415549), (665, 393678), (798, 328065), (855, 306194), (1197, 218710), (1330, 196839), (1710, 153097), (1995, 131226), (2394, 109355), (3990, 65613), (5985, 43742), (11970, 21871)]