19825400

素因数分解:

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

素因数の和:71

約数の個数: 144

約数和(自身を含む): 57102000

約数和(自身を除く): 37276600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 68, 70, 85, 98, 100, 119, 136, 140, 170, 175, 196, 200, 238, 245, 280, 289, 340, 343, 350, 392, 425, 476, 490, 578, 595, 680, 686, 700, 833, 850, 952, 980, 1156, 1190, 1225, 1372, 1400, 1445, 1666, 1700, 1715, 1960, 2023, 2312, 2380, 2450, 2744, 2890, 2975, 3332, 3400, 3430, 4046, 4165, 4760, 4900, 5780, 5831, 5950, 6664, 6860, 7225, 8092, 8330, 8575, 9800, 10115, 11560, 11662, 11900, 13720, 14161, 14450, 16184, 16660, 17150, 20230, 20825, 23324, 23800, 28322, 28900, 29155, 33320, 34300, 40460, 41650, 46648, 50575, 56644, 57800, 58310, 68600, 70805, 80920, 83300, 99127, 101150, 113288, 116620, 141610, 145775, 166600, 198254, 202300, 233240, 283220, 291550, 354025, 396508, 404600, 495635, 566440, 583100, 708050, 793016, 991270, 1166200, 1416100, 1982540, 2478175, 2832200, 3965080, 4956350, 9912700, 19825400]

約数ペア:

[(1, 19825400), (2, 9912700), (4, 4956350), (5, 3965080), (7, 2832200), (8, 2478175), (10, 1982540), (14, 1416100), (17, 1166200), (20, 991270), (25, 793016), (28, 708050), (34, 583100), (35, 566440), (40, 495635), (49, 404600), (50, 396508), (56, 354025), (68, 291550), (70, 283220), (85, 233240), (98, 202300), (100, 198254), (119, 166600), (136, 145775), (140, 141610), (170, 116620), (175, 113288), (196, 101150), (200, 99127), (238, 83300), (245, 80920), (280, 70805), (289, 68600), (340, 58310), (343, 57800), (350, 56644), (392, 50575), (425, 46648), (476, 41650), (490, 40460), (578, 34300), (595, 33320), (680, 29155), (686, 28900), (700, 28322), (833, 23800), (850, 23324), (952, 20825), (980, 20230), (1156, 17150), (1190, 16660), (1225, 16184), (1372, 14450), (1400, 14161), (1445, 13720), (1666, 11900), (1700, 11662), (1715, 11560), (1960, 10115), (2023, 9800), (2312, 8575), (2380, 8330), (2450, 8092), (2744, 7225), (2890, 6860), (2975, 6664), (3332, 5950), (3400, 5831), (3430, 5780), (4046, 4900), (4165, 4760)]