20563725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 43997184

約数和(自身を除く): 23433459

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 25, 35, 39, 65, 69, 75, 91, 105, 115, 131, 161, 175, 195, 273, 299, 325, 345, 393, 455, 483, 525, 575, 655, 805, 897, 917, 975, 1365, 1495, 1703, 1725, 1965, 2093, 2275, 2415, 2751, 3013, 3275, 4025, 4485, 4585, 5109, 6279, 6825, 7475, 8515, 9039, 9825, 10465, 11921, 12075, 13755, 15065, 21091, 22425, 22925, 25545, 31395, 35763, 39169, 42575, 45195, 52325, 59605, 63273, 68775, 75325, 105455, 117507, 127725, 156975, 178815, 195845, 225975, 274183, 298025, 316365, 527275, 587535, 822549, 894075, 979225, 1370915, 1581825, 2937675, 4112745, 6854575, 20563725]

約数ペア:

[(1, 20563725), (3, 6854575), (5, 4112745), (7, 2937675), (13, 1581825), (15, 1370915), (21, 979225), (23, 894075), (25, 822549), (35, 587535), (39, 527275), (65, 316365), (69, 298025), (75, 274183), (91, 225975), (105, 195845), (115, 178815), (131, 156975), (161, 127725), (175, 117507), (195, 105455), (273, 75325), (299, 68775), (325, 63273), (345, 59605), (393, 52325), (455, 45195), (483, 42575), (525, 39169), (575, 35763), (655, 31395), (805, 25545), (897, 22925), (917, 22425), (975, 21091), (1365, 15065), (1495, 13755), (1703, 12075), (1725, 11921), (1965, 10465), (2093, 9825), (2275, 9039), (2415, 8515), (2751, 7475), (3013, 6825), (3275, 6279), (4025, 5109), (4485, 4585)]