15829940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:609

約数の個数: 72

約数和(自身を含む): 40075560

約数和(自身を除く): 24245620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 557, 580, 812, 980, 1015, 1114, 1421, 2030, 2228, 2785, 2842, 3899, 4060, 5570, 5684, 7105, 7798, 11140, 14210, 15596, 16153, 19495, 27293, 28420, 32306, 38990, 54586, 64612, 77980, 80765, 109172, 113071, 136465, 161530, 226142, 272930, 323060, 452284, 545860, 565355, 791497, 1130710, 1582994, 2261420, 3165988, 3957485, 7914970, 15829940]

約数ペア:

[(1, 15829940), (2, 7914970), (4, 3957485), (5, 3165988), (7, 2261420), (10, 1582994), (14, 1130710), (20, 791497), (28, 565355), (29, 545860), (35, 452284), (49, 323060), (58, 272930), (70, 226142), (98, 161530), (116, 136465), (140, 113071), (145, 109172), (196, 80765), (203, 77980), (245, 64612), (290, 54586), (406, 38990), (490, 32306), (557, 28420), (580, 27293), (812, 19495), (980, 16153), (1015, 15596), (1114, 14210), (1421, 11140), (2030, 7798), (2228, 7105), (2785, 5684), (2842, 5570), (3899, 4060)]