405307406

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1\times {\mathrm{659}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 702535680

約数和(自身を除く): 297228274

約数列:

[1, 2, 7, 14, 197, 223, 394, 446, 659, 1318, 1379, 1561, 2758, 3122, 4613, 9226, 43931, 87862, 129823, 146957, 259646, 293914, 307517, 615034, 908761, 1028699, 1817522, 2057398, 28950529, 57901058, 202653703, 405307406]

約数ペア:

[(1, 405307406), (2, 202653703), (7, 57901058), (14, 28950529), (197, 2057398), (223, 1817522), (394, 1028699), (446, 908761), (659, 615034), (1318, 307517), (1379, 293914), (1561, 259646), (2758, 146957), (3122, 129823), (4613, 87862), (9226, 43931)]