981900535

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2113}}^1$

素因数の和:2224

約数の個数: 64

約数和(自身を含む): 1578092544

約数和(自身を除く): 596192009

約数列:

[1, 5, 7, 11, 17, 35, 55, 71, 77, 85, 119, 187, 355, 385, 497, 595, 781, 935, 1207, 1309, 2113, 2485, 3905, 5467, 6035, 6545, 8449, 10565, 13277, 14791, 23243, 27335, 35921, 42245, 66385, 73955, 92939, 116215, 150023, 162701, 179605, 251447, 395131, 464695, 750115, 813505, 1050161, 1257235, 1650253, 1975655, 2550391, 2765917, 5250805, 8251265, 11551771, 12751955, 13829585, 17852737, 28054301, 57758855, 89263685, 140271505, 196380107, 981900535]

約数ペア:

[(1, 981900535), (5, 196380107), (7, 140271505), (11, 89263685), (17, 57758855), (35, 28054301), (55, 17852737), (71, 13829585), (77, 12751955), (85, 11551771), (119, 8251265), (187, 5250805), (355, 2765917), (385, 2550391), (497, 1975655), (595, 1650253), (781, 1257235), (935, 1050161), (1207, 813505), (1309, 750115), (2113, 464695), (2485, 395131), (3905, 251447), (5467, 179605), (6035, 162701), (6545, 150023), (8449, 116215), (10565, 92939), (13277, 73955), (14791, 66385), (23243, 42245), (27335, 35921)]