78875820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1409}}^1$

素因数の和:1735

約数の個数: 72

約数和(自身を含む): 240196320

約数和(自身を除く): 161320500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 622, 933, 1244, 1409, 1555, 1866, 2799, 2818, 3110, 3732, 4227, 4665, 5598, 5636, 6220, 7045, 8454, 9330, 11196, 12681, 13995, 14090, 16908, 18660, 21135, 25362, 27990, 28180, 42270, 50724, 55980, 63405, 84540, 126810, 253620, 438199, 876398, 1314597, 1752796, 2190995, 2629194, 3943791, 4381990, 5258388, 6572985, 7887582, 8763980, 13145970, 15775164, 19718955, 26291940, 39437910, 78875820]

約数ペア:

[(1, 78875820), (2, 39437910), (3, 26291940), (4, 19718955), (5, 15775164), (6, 13145970), (9, 8763980), (10, 7887582), (12, 6572985), (15, 5258388), (18, 4381990), (20, 3943791), (30, 2629194), (36, 2190995), (45, 1752796), (60, 1314597), (90, 876398), (180, 438199), (311, 253620), (622, 126810), (933, 84540), (1244, 63405), (1409, 55980), (1555, 50724), (1866, 42270), (2799, 28180), (2818, 27990), (3110, 25362), (3732, 21135), (4227, 18660), (4665, 16908), (5598, 14090), (5636, 13995), (6220, 12681), (7045, 11196), (8454, 9330)]