20158600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1$

素因数の和:69

約数の個数: 216

約数和(自身を含む): 63452970

約数和(自身を除く): 43294370

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 25, 28, 34, 35, 40, 44, 49, 50, 55, 56, 68, 70, 77, 85, 88, 98, 100, 110, 119, 121, 136, 140, 154, 170, 175, 187, 196, 200, 220, 238, 242, 245, 275, 280, 308, 340, 350, 374, 385, 392, 425, 440, 476, 484, 490, 539, 550, 595, 605, 616, 680, 700, 748, 770, 833, 847, 850, 935, 952, 968, 980, 1078, 1100, 1190, 1210, 1225, 1309, 1400, 1496, 1540, 1666, 1694, 1700, 1870, 1925, 1960, 2057, 2156, 2200, 2380, 2420, 2450, 2618, 2695, 2975, 3025, 3080, 3332, 3388, 3400, 3740, 3850, 4114, 4165, 4235, 4312, 4675, 4760, 4840, 4900, 5236, 5390, 5929, 5950, 6050, 6545, 6664, 6776, 7480, 7700, 8228, 8330, 8470, 9163, 9350, 9800, 10285, 10472, 10780, 11858, 11900, 12100, 13090, 13475, 14399, 15400, 16456, 16660, 16940, 18326, 18700, 20570, 20825, 21175, 21560, 23716, 23800, 24200, 26180, 26950, 28798, 29645, 32725, 33320, 33880, 36652, 37400, 41140, 41650, 42350, 45815, 47432, 51425, 52360, 53900, 57596, 59290, 65450, 71995, 73304, 82280, 83300, 84700, 91630, 100793, 102850, 107800, 115192, 118580, 130900, 143990, 148225, 166600, 169400, 183260, 201586, 205700, 229075, 237160, 261800, 287980, 296450, 359975, 366520, 403172, 411400, 458150, 503965, 575960, 592900, 719950, 806344, 916300, 1007930, 1185800, 1439900, 1832600, 2015860, 2519825, 2879800, 4031720, 5039650, 10079300, 20158600]

約数ペア:

[(1, 20158600), (2, 10079300), (4, 5039650), (5, 4031720), (7, 2879800), (8, 2519825), (10, 2015860), (11, 1832600), (14, 1439900), (17, 1185800), (20, 1007930), (22, 916300), (25, 806344), (28, 719950), (34, 592900), (35, 575960), (40, 503965), (44, 458150), (49, 411400), (50, 403172), (55, 366520), (56, 359975), (68, 296450), (70, 287980), (77, 261800), (85, 237160), (88, 229075), (98, 205700), (100, 201586), (110, 183260), (119, 169400), (121, 166600), (136, 148225), (140, 143990), (154, 130900), (170, 118580), (175, 115192), (187, 107800), (196, 102850), (200, 100793), (220, 91630), (238, 84700), (242, 83300), (245, 82280), (275, 73304), (280, 71995), (308, 65450), (340, 59290), (350, 57596), (374, 53900), (385, 52360), (392, 51425), (425, 47432), (440, 45815), (476, 42350), (484, 41650), (490, 41140), (539, 37400), (550, 36652), (595, 33880), (605, 33320), (616, 32725), (680, 29645), (700, 28798), (748, 26950), (770, 26180), (833, 24200), (847, 23800), (850, 23716), (935, 21560), (952, 21175), (968, 20825), (980, 20570), (1078, 18700), (1100, 18326), (1190, 16940), (1210, 16660), (1225, 16456), (1309, 15400), (1400, 14399), (1496, 13475), (1540, 13090), (1666, 12100), (1694, 11900), (1700, 11858), (1870, 10780), (1925, 10472), (1960, 10285), (2057, 9800), (2156, 9350), (2200, 9163), (2380, 8470), (2420, 8330), (2450, 8228), (2618, 7700), (2695, 7480), (2975, 6776), (3025, 6664), (3080, 6545), (3332, 6050), (3388, 5950), (3400, 5929), (3740, 5390), (3850, 5236), (4114, 4900), (4165, 4840), (4235, 4760), (4312, 4675)]