78389080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:881

約数の個数: 128

約数和(自身を含む): 227266560

約数和(自身を除く): 148877480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 821, 868, 1085, 1240, 1364, 1540, 1642, 1705, 1736, 2170, 2387, 2728, 3080, 3284, 3410, 4105, 4340, 4774, 5747, 6568, 6820, 8210, 8680, 9031, 9548, 11494, 11935, 13640, 16420, 18062, 19096, 22988, 23870, 25451, 28735, 32840, 36124, 45155, 45976, 47740, 50902, 57470, 63217, 72248, 90310, 95480, 101804, 114940, 126434, 127255, 178157, 180620, 203608, 229880, 252868, 254510, 279961, 316085, 356314, 361240, 505736, 509020, 559922, 632170, 712628, 890785, 1018040, 1119844, 1264340, 1399805, 1425256, 1781570, 1959727, 2239688, 2528680, 2799610, 3563140, 3919454, 5599220, 7126280, 7838908, 9798635, 11198440, 15677816, 19597270, 39194540, 78389080]

約数ペア:

[(1, 78389080), (2, 39194540), (4, 19597270), (5, 15677816), (7, 11198440), (8, 9798635), (10, 7838908), (11, 7126280), (14, 5599220), (20, 3919454), (22, 3563140), (28, 2799610), (31, 2528680), (35, 2239688), (40, 1959727), (44, 1781570), (55, 1425256), (56, 1399805), (62, 1264340), (70, 1119844), (77, 1018040), (88, 890785), (110, 712628), (124, 632170), (140, 559922), (154, 509020), (155, 505736), (217, 361240), (220, 356314), (248, 316085), (280, 279961), (308, 254510), (310, 252868), (341, 229880), (385, 203608), (434, 180620), (440, 178157), (616, 127255), (620, 126434), (682, 114940), (770, 101804), (821, 95480), (868, 90310), (1085, 72248), (1240, 63217), (1364, 57470), (1540, 50902), (1642, 47740), (1705, 45976), (1736, 45155), (2170, 36124), (2387, 32840), (2728, 28735), (3080, 25451), (3284, 23870), (3410, 22988), (4105, 19096), (4340, 18062), (4774, 16420), (5747, 13640), (6568, 11935), (6820, 11494), (8210, 9548), (8680, 9031)]