15661271516

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{571}}^1\times {\mathrm{929}}^1$

素因数の和:1587

約数の個数: 72

約数和(自身を含む): 30705795120

約数和(自身を除く): 15044523604

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 571, 671, 929, 1142, 1342, 1858, 2284, 2684, 3716, 6281, 7381, 10219, 12562, 14762, 20438, 25124, 29524, 34831, 40876, 56669, 69091, 69662, 112409, 113338, 138182, 139324, 224818, 226676, 276364, 383141, 449636, 530459, 623359, 766282, 1060918, 1246718, 1532564, 2121836, 2493436, 4214551, 5835049, 6856949, 8429102, 11670098, 13713898, 16858204, 23340196, 27427796, 32357999, 64185539, 64715998, 128371078, 129431996, 256742156, 355937989, 711875978, 1423751956, 3915317879, 7830635758, 15661271516]

約数ペア:

[(1, 15661271516), (2, 7830635758), (4, 3915317879), (11, 1423751956), (22, 711875978), (44, 355937989), (61, 256742156), (121, 129431996), (122, 128371078), (242, 64715998), (244, 64185539), (484, 32357999), (571, 27427796), (671, 23340196), (929, 16858204), (1142, 13713898), (1342, 11670098), (1858, 8429102), (2284, 6856949), (2684, 5835049), (3716, 4214551), (6281, 2493436), (7381, 2121836), (10219, 1532564), (12562, 1246718), (14762, 1060918), (20438, 766282), (25124, 623359), (29524, 530459), (34831, 449636), (40876, 383141), (56669, 276364), (69091, 226676), (69662, 224818), (112409, 139324), (113338, 138182)]