20392365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 39836160

約数和(自身を除く): 19443795

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 37, 87, 105, 111, 145, 181, 185, 203, 259, 435, 543, 555, 609, 777, 905, 1015, 1073, 1267, 1295, 2715, 3045, 3219, 3801, 3885, 5249, 5365, 6335, 6697, 7511, 15747, 16095, 19005, 20091, 22533, 26245, 33485, 36743, 37555, 46879, 78735, 100455, 110229, 112665, 140637, 183715, 194213, 234395, 551145, 582639, 703185, 971065, 1359491, 2913195, 4078473, 6797455, 20392365]

約数ペア:

[(1, 20392365), (3, 6797455), (5, 4078473), (7, 2913195), (15, 1359491), (21, 971065), (29, 703185), (35, 582639), (37, 551145), (87, 234395), (105, 194213), (111, 183715), (145, 140637), (181, 112665), (185, 110229), (203, 100455), (259, 78735), (435, 46879), (543, 37555), (555, 36743), (609, 33485), (777, 26245), (905, 22533), (1015, 20091), (1073, 19005), (1267, 16095), (1295, 15747), (2715, 7511), (3045, 6697), (3219, 6335), (3801, 5365), (3885, 5249)]