20559700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1277}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 53246592

約数和(自身を除く): 32686892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1277, 1610, 2300, 2554, 3220, 4025, 5108, 6385, 8050, 8939, 12770, 16100, 17878, 25540, 29371, 31925, 35756, 44695, 58742, 63850, 89390, 117484, 127700, 146855, 178780, 205597, 223475, 293710, 411194, 446950, 587420, 734275, 822388, 893900, 1027985, 1468550, 2055970, 2937100, 4111940, 5139925, 10279850, 20559700]

約数ペア:

[(1, 20559700), (2, 10279850), (4, 5139925), (5, 4111940), (7, 2937100), (10, 2055970), (14, 1468550), (20, 1027985), (23, 893900), (25, 822388), (28, 734275), (35, 587420), (46, 446950), (50, 411194), (70, 293710), (92, 223475), (100, 205597), (115, 178780), (140, 146855), (161, 127700), (175, 117484), (230, 89390), (322, 63850), (350, 58742), (460, 44695), (575, 35756), (644, 31925), (700, 29371), (805, 25540), (1150, 17878), (1277, 16100), (1610, 12770), (2300, 8939), (2554, 8050), (3220, 6385), (4025, 5108)]