388627428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{17863}}^1$

素因数の和:17921

約数の個数: 72

約数和(自身を含む): 1083415872

約数和(自身を除く): 694788444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 1036, 1554, 1813, 3108, 3626, 5439, 7252, 10878, 17863, 21756, 35726, 53589, 71452, 107178, 125041, 214356, 250082, 375123, 500164, 660931, 750246, 875287, 1321862, 1500492, 1750574, 1982793, 2625861, 2643724, 3501148, 3965586, 4626517, 5251722, 7931172, 9253034, 10503444, 13879551, 18506068, 27759102, 32385619, 55518204, 64771238, 97156857, 129542476, 194313714, 388627428]

約数ペア:

[(1, 388627428), (2, 194313714), (3, 129542476), (4, 97156857), (6, 64771238), (7, 55518204), (12, 32385619), (14, 27759102), (21, 18506068), (28, 13879551), (37, 10503444), (42, 9253034), (49, 7931172), (74, 5251722), (84, 4626517), (98, 3965586), (111, 3501148), (147, 2643724), (148, 2625861), (196, 1982793), (222, 1750574), (259, 1500492), (294, 1321862), (444, 875287), (518, 750246), (588, 660931), (777, 500164), (1036, 375123), (1554, 250082), (1813, 214356), (3108, 125041), (3626, 107178), (5439, 71452), (7252, 53589), (10878, 35726), (17863, 21756)]