17728900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 48885760

約数和(自身を除く): 31156860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 31, 35, 38, 43, 50, 62, 70, 76, 86, 95, 100, 124, 133, 140, 155, 172, 175, 190, 215, 217, 266, 301, 310, 350, 380, 430, 434, 475, 532, 589, 602, 620, 665, 700, 775, 817, 860, 868, 950, 1075, 1085, 1178, 1204, 1330, 1333, 1505, 1550, 1634, 1900, 2150, 2170, 2356, 2660, 2666, 2945, 3010, 3100, 3268, 3325, 4085, 4123, 4300, 4340, 5332, 5425, 5719, 5890, 6020, 6650, 6665, 7525, 8170, 8246, 9331, 10850, 11438, 11780, 13300, 13330, 14725, 15050, 16340, 16492, 18662, 20425, 20615, 21700, 22876, 25327, 26660, 28595, 29450, 30100, 33325, 37324, 40850, 41230, 46655, 50654, 57190, 58900, 66650, 81700, 82460, 93310, 101308, 103075, 114380, 126635, 133300, 142975, 177289, 186620, 206150, 233275, 253270, 285950, 354578, 412300, 466550, 506540, 571900, 633175, 709156, 886445, 933100, 1266350, 1772890, 2532700, 3545780, 4432225, 8864450, 17728900]

約数ペア:

[(1, 17728900), (2, 8864450), (4, 4432225), (5, 3545780), (7, 2532700), (10, 1772890), (14, 1266350), (19, 933100), (20, 886445), (25, 709156), (28, 633175), (31, 571900), (35, 506540), (38, 466550), (43, 412300), (50, 354578), (62, 285950), (70, 253270), (76, 233275), (86, 206150), (95, 186620), (100, 177289), (124, 142975), (133, 133300), (140, 126635), (155, 114380), (172, 103075), (175, 101308), (190, 93310), (215, 82460), (217, 81700), (266, 66650), (301, 58900), (310, 57190), (350, 50654), (380, 46655), (430, 41230), (434, 40850), (475, 37324), (532, 33325), (589, 30100), (602, 29450), (620, 28595), (665, 26660), (700, 25327), (775, 22876), (817, 21700), (860, 20615), (868, 20425), (950, 18662), (1075, 16492), (1085, 16340), (1178, 15050), (1204, 14725), (1330, 13330), (1333, 13300), (1505, 11780), (1550, 11438), (1634, 10850), (1900, 9331), (2150, 8246), (2170, 8170), (2356, 7525), (2660, 6665), (2666, 6650), (2945, 6020), (3010, 5890), (3100, 5719), (3268, 5425), (3325, 5332), (4085, 4340), (4123, 4300)]