20113727985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1\times {\mathrm{2179}}^1$

素因数の和:2743

約数の個数: 96

約数和(自身を含む): 38850739200

約数和(自身を除く): 18737011215

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 509, 585, 1209, 1395, 1527, 2015, 2179, 2545, 3627, 4581, 6045, 6537, 6617, 7635, 10895, 15779, 18135, 19611, 19851, 22905, 28327, 32685, 33085, 47337, 59553, 67549, 78895, 84981, 98055, 99255, 141635, 142011, 202647, 205127, 236685, 254943, 297765, 337745, 424905, 607941, 615381, 710055, 878137, 1013235, 1025635, 1109111, 1274715, 1846143, 2634411, 3039705, 3076905, 3327333, 4390685, 5545555, 7903233, 9230715, 9981999, 13172055, 14418443, 16636665, 34382441, 39516165, 43255329, 49909995, 72092215, 103147323, 129765987, 171912205, 216276645, 309441969, 446971733, 515736615, 648829935, 1340915199, 1547209845, 2234858665, 4022745597, 6704575995, 20113727985]

約数ペア:

[(1, 20113727985), (3, 6704575995), (5, 4022745597), (9, 2234858665), (13, 1547209845), (15, 1340915199), (31, 648829935), (39, 515736615), (45, 446971733), (65, 309441969), (93, 216276645), (117, 171912205), (155, 129765987), (195, 103147323), (279, 72092215), (403, 49909995), (465, 43255329), (509, 39516165), (585, 34382441), (1209, 16636665), (1395, 14418443), (1527, 13172055), (2015, 9981999), (2179, 9230715), (2545, 7903233), (3627, 5545555), (4581, 4390685), (6045, 3327333), (6537, 3076905), (6617, 3039705), (7635, 2634411), (10895, 1846143), (15779, 1274715), (18135, 1109111), (19611, 1025635), (19851, 1013235), (22905, 878137), (28327, 710055), (32685, 615381), (33085, 607941), (47337, 424905), (59553, 337745), (67549, 297765), (78895, 254943), (84981, 236685), (98055, 205127), (99255, 202647), (141635, 142011)]