20199668

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 36220800

約数和(自身を除く): 16021132

約数列:

[1, 2, 4, 79, 97, 158, 194, 316, 388, 659, 1318, 2636, 7663, 15326, 30652, 52061, 63923, 104122, 127846, 208244, 255692, 5049917, 10099834, 20199668]

約数ペア:

[(1, 20199668), (2, 10099834), (4, 5049917), (79, 255692), (97, 208244), (158, 127846), (194, 104122), (316, 63923), (388, 52061), (659, 30652), (1318, 15326), (2636, 7663)]