20199061995

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{28597}}^1$

素因数の和:28681

約数の個数: 72

約数和(自身を含む): 38848209552

約数和(自身を除く): 18649147557

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 651, 735, 961, 1085, 1519, 2883, 3255, 4557, 4805, 6727, 7595, 14415, 20181, 22785, 28597, 33635, 47089, 85791, 100905, 141267, 142985, 200179, 235445, 428955, 600537, 706335, 886507, 1000895, 1401253, 2659521, 3002685, 4203759, 4432535, 6205549, 7006265, 13297605, 18616647, 21018795, 27481717, 31027745, 43438843, 82445151, 93083235, 130316529, 137408585, 192372019, 217194215, 412225755, 577116057, 651582645, 961860095, 1346604133, 2885580285, 4039812399, 6733020665, 20199061995]

約数ペア:

[(1, 20199061995), (3, 6733020665), (5, 4039812399), (7, 2885580285), (15, 1346604133), (21, 961860095), (31, 651582645), (35, 577116057), (49, 412225755), (93, 217194215), (105, 192372019), (147, 137408585), (155, 130316529), (217, 93083235), (245, 82445151), (465, 43438843), (651, 31027745), (735, 27481717), (961, 21018795), (1085, 18616647), (1519, 13297605), (2883, 7006265), (3255, 6205549), (4557, 4432535), (4805, 4203759), (6727, 3002685), (7595, 2659521), (14415, 1401253), (20181, 1000895), (22785, 886507), (28597, 706335), (33635, 600537), (47089, 428955), (85791, 235445), (100905, 200179), (141267, 142985)]