28405300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 216

約数和(自身を含む): 85494528

約数和(自身を除く): 57089228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 25, 28, 31, 34, 35, 44, 49, 50, 55, 62, 68, 70, 77, 85, 98, 100, 110, 119, 124, 140, 154, 155, 170, 175, 187, 196, 217, 220, 238, 245, 275, 308, 310, 340, 341, 350, 374, 385, 425, 434, 476, 490, 527, 539, 550, 595, 620, 682, 700, 748, 770, 775, 833, 850, 868, 935, 980, 1054, 1078, 1085, 1100, 1190, 1225, 1309, 1364, 1519, 1540, 1550, 1666, 1700, 1705, 1870, 1925, 2108, 2156, 2170, 2380, 2387, 2450, 2618, 2635, 2695, 2975, 3038, 3100, 3332, 3410, 3689, 3740, 3850, 4165, 4340, 4675, 4774, 4900, 5236, 5270, 5390, 5425, 5797, 5950, 6076, 6545, 6820, 7378, 7595, 7700, 8330, 8525, 9163, 9350, 9548, 10540, 10780, 10850, 11594, 11900, 11935, 13090, 13175, 13475, 14756, 15190, 16660, 16709, 17050, 18326, 18445, 18700, 20825, 21700, 23188, 23870, 25823, 26180, 26350, 26950, 28985, 30380, 32725, 33418, 34100, 36652, 36890, 37975, 40579, 41650, 45815, 47740, 51646, 52700, 53900, 57970, 59675, 65450, 66836, 73780, 75950, 81158, 83300, 83545, 91630, 92225, 103292, 115940, 119350, 129115, 130900, 144925, 151900, 162316, 167090, 183260, 184450, 202895, 229075, 238700, 258230, 284053, 289850, 334180, 368900, 405790, 417725, 458150, 516460, 568106, 579700, 645575, 811580, 835450, 916300, 1014475, 1136212, 1291150, 1420265, 1670900, 2028950, 2582300, 2840530, 4057900, 5681060, 7101325, 14202650, 28405300]

約数ペア:

[(1, 28405300), (2, 14202650), (4, 7101325), (5, 5681060), (7, 4057900), (10, 2840530), (11, 2582300), (14, 2028950), (17, 1670900), (20, 1420265), (22, 1291150), (25, 1136212), (28, 1014475), (31, 916300), (34, 835450), (35, 811580), (44, 645575), (49, 579700), (50, 568106), (55, 516460), (62, 458150), (68, 417725), (70, 405790), (77, 368900), (85, 334180), (98, 289850), (100, 284053), (110, 258230), (119, 238700), (124, 229075), (140, 202895), (154, 184450), (155, 183260), (170, 167090), (175, 162316), (187, 151900), (196, 144925), (217, 130900), (220, 129115), (238, 119350), (245, 115940), (275, 103292), (308, 92225), (310, 91630), (340, 83545), (341, 83300), (350, 81158), (374, 75950), (385, 73780), (425, 66836), (434, 65450), (476, 59675), (490, 57970), (527, 53900), (539, 52700), (550, 51646), (595, 47740), (620, 45815), (682, 41650), (700, 40579), (748, 37975), (770, 36890), (775, 36652), (833, 34100), (850, 33418), (868, 32725), (935, 30380), (980, 28985), (1054, 26950), (1078, 26350), (1085, 26180), (1100, 25823), (1190, 23870), (1225, 23188), (1309, 21700), (1364, 20825), (1519, 18700), (1540, 18445), (1550, 18326), (1666, 17050), (1700, 16709), (1705, 16660), (1870, 15190), (1925, 14756), (2108, 13475), (2156, 13175), (2170, 13090), (2380, 11935), (2387, 11900), (2450, 11594), (2618, 10850), (2635, 10780), (2695, 10540), (2975, 9548), (3038, 9350), (3100, 9163), (3332, 8525), (3410, 8330), (3689, 7700), (3740, 7595), (3850, 7378), (4165, 6820), (4340, 6545), (4675, 6076), (4774, 5950), (4900, 5797), (5236, 5425), (5270, 5390)]