87472700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 233318400

約数和(自身を除く): 145845700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 31, 35, 50, 58, 62, 70, 100, 116, 124, 139, 140, 145, 155, 175, 203, 217, 278, 290, 310, 350, 406, 434, 556, 580, 620, 695, 700, 725, 775, 812, 868, 899, 973, 1015, 1085, 1390, 1450, 1550, 1798, 1946, 2030, 2170, 2780, 2900, 3100, 3475, 3596, 3892, 4031, 4060, 4309, 4340, 4495, 4865, 5075, 5425, 6293, 6950, 8062, 8618, 8990, 9730, 10150, 10850, 12586, 13900, 16124, 17236, 17980, 19460, 20155, 20300, 21545, 21700, 22475, 24325, 25172, 28217, 30163, 31465, 40310, 43090, 44950, 48650, 56434, 60326, 62930, 80620, 86180, 89900, 97300, 100775, 107725, 112868, 120652, 124961, 125860, 141085, 150815, 157325, 201550, 215450, 249922, 282170, 301630, 314650, 403100, 430900, 499844, 564340, 603260, 624805, 629300, 705425, 754075, 874727, 1249610, 1410850, 1508150, 1749454, 2499220, 2821700, 3016300, 3124025, 3498908, 4373635, 6248050, 8747270, 12496100, 17494540, 21868175, 43736350, 87472700]

約数ペア:

[(1, 87472700), (2, 43736350), (4, 21868175), (5, 17494540), (7, 12496100), (10, 8747270), (14, 6248050), (20, 4373635), (25, 3498908), (28, 3124025), (29, 3016300), (31, 2821700), (35, 2499220), (50, 1749454), (58, 1508150), (62, 1410850), (70, 1249610), (100, 874727), (116, 754075), (124, 705425), (139, 629300), (140, 624805), (145, 603260), (155, 564340), (175, 499844), (203, 430900), (217, 403100), (278, 314650), (290, 301630), (310, 282170), (350, 249922), (406, 215450), (434, 201550), (556, 157325), (580, 150815), (620, 141085), (695, 125860), (700, 124961), (725, 120652), (775, 112868), (812, 107725), (868, 100775), (899, 97300), (973, 89900), (1015, 86180), (1085, 80620), (1390, 62930), (1450, 60326), (1550, 56434), (1798, 48650), (1946, 44950), (2030, 43090), (2170, 40310), (2780, 31465), (2900, 30163), (3100, 28217), (3475, 25172), (3596, 24325), (3892, 22475), (4031, 21700), (4060, 21545), (4309, 20300), (4340, 20155), (4495, 19460), (4865, 17980), (5075, 17236), (5425, 16124), (6293, 13900), (6950, 12586), (8062, 10850), (8618, 10150), (8990, 9730)]