18834340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4639}}^1$

素因数の和:4684

約数の個数: 48

約数和(自身を含む): 46771200

約数和(自身を除く): 27936860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4639, 9278, 18556, 23195, 32473, 46390, 64946, 92780, 129892, 134531, 162365, 269062, 324730, 538124, 649460, 672655, 941717, 1345310, 1883434, 2690620, 3766868, 4708585, 9417170, 18834340]

約数ペア:

[(1, 18834340), (2, 9417170), (4, 4708585), (5, 3766868), (7, 2690620), (10, 1883434), (14, 1345310), (20, 941717), (28, 672655), (29, 649460), (35, 538124), (58, 324730), (70, 269062), (116, 162365), (140, 134531), (145, 129892), (203, 92780), (290, 64946), (406, 46390), (580, 32473), (812, 23195), (1015, 18556), (2030, 9278), (4060, 4639)]