17997980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 192

約数和(自身を含む): 54190080

約数和(自身を除く): 36192100

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 29, 31, 35, 44, 52, 55, 58, 62, 65, 70, 77, 91, 110, 116, 124, 130, 140, 143, 145, 154, 155, 182, 203, 217, 220, 260, 286, 290, 308, 310, 319, 341, 364, 377, 385, 403, 406, 434, 455, 572, 580, 620, 638, 682, 715, 754, 770, 806, 812, 868, 899, 910, 1001, 1015, 1085, 1276, 1364, 1430, 1508, 1540, 1595, 1612, 1705, 1798, 1820, 1885, 2002, 2015, 2030, 2170, 2233, 2387, 2639, 2821, 2860, 3190, 3410, 3596, 3770, 4004, 4030, 4060, 4147, 4340, 4433, 4466, 4495, 4774, 5005, 5278, 5642, 6293, 6380, 6820, 7540, 8060, 8294, 8866, 8932, 8990, 9548, 9889, 10010, 10556, 11165, 11284, 11687, 11935, 12586, 13195, 14105, 16588, 17732, 17980, 19778, 20020, 20735, 22165, 22330, 23374, 23870, 25172, 26390, 28210, 29029, 31031, 31465, 39556, 41470, 44330, 44660, 46748, 47740, 49445, 52780, 56420, 58058, 58435, 62062, 62930, 69223, 81809, 82940, 88660, 98890, 116116, 116870, 124124, 125860, 128557, 138446, 145145, 155155, 163618, 197780, 233740, 257114, 276892, 290290, 310310, 327236, 346115, 409045, 514228, 580580, 620620, 642785, 692230, 818090, 899899, 1285570, 1384460, 1636180, 1799798, 2571140, 3599596, 4499495, 8998990, 17997980]

約数ペア:

[(1, 17997980), (2, 8998990), (4, 4499495), (5, 3599596), (7, 2571140), (10, 1799798), (11, 1636180), (13, 1384460), (14, 1285570), (20, 899899), (22, 818090), (26, 692230), (28, 642785), (29, 620620), (31, 580580), (35, 514228), (44, 409045), (52, 346115), (55, 327236), (58, 310310), (62, 290290), (65, 276892), (70, 257114), (77, 233740), (91, 197780), (110, 163618), (116, 155155), (124, 145145), (130, 138446), (140, 128557), (143, 125860), (145, 124124), (154, 116870), (155, 116116), (182, 98890), (203, 88660), (217, 82940), (220, 81809), (260, 69223), (286, 62930), (290, 62062), (308, 58435), (310, 58058), (319, 56420), (341, 52780), (364, 49445), (377, 47740), (385, 46748), (403, 44660), (406, 44330), (434, 41470), (455, 39556), (572, 31465), (580, 31031), (620, 29029), (638, 28210), (682, 26390), (715, 25172), (754, 23870), (770, 23374), (806, 22330), (812, 22165), (868, 20735), (899, 20020), (910, 19778), (1001, 17980), (1015, 17732), (1085, 16588), (1276, 14105), (1364, 13195), (1430, 12586), (1508, 11935), (1540, 11687), (1595, 11284), (1612, 11165), (1705, 10556), (1798, 10010), (1820, 9889), (1885, 9548), (2002, 8990), (2015, 8932), (2030, 8866), (2170, 8294), (2233, 8060), (2387, 7540), (2639, 6820), (2821, 6380), (2860, 6293), (3190, 5642), (3410, 5278), (3596, 5005), (3770, 4774), (4004, 4495), (4030, 4466), (4060, 4433), (4147, 4340)]