20128496

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{659}}^1$

素因数の和:773

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 21118864

約数列:

[1, 2, 4, 8, 16, 23, 46, 83, 92, 166, 184, 332, 368, 659, 664, 1318, 1328, 1909, 2636, 3818, 5272, 7636, 10544, 15157, 15272, 30314, 30544, 54697, 60628, 109394, 121256, 218788, 242512, 437576, 875152, 1258031, 2516062, 5032124, 10064248, 20128496]

約数ペア:

[(1, 20128496), (2, 10064248), (4, 5032124), (8, 2516062), (16, 1258031), (23, 875152), (46, 437576), (83, 242512), (92, 218788), (166, 121256), (184, 109394), (332, 60628), (368, 54697), (659, 30544), (664, 30314), (1318, 15272), (1328, 15157), (1909, 10544), (2636, 7636), (3818, 5272)]