19817000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 56160000

約数和(自身を除く): 36343000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 125, 133, 140, 149, 152, 175, 190, 200, 250, 266, 280, 298, 350, 380, 475, 500, 532, 596, 665, 700, 745, 760, 875, 950, 1000, 1043, 1064, 1192, 1330, 1400, 1490, 1750, 1900, 2086, 2375, 2660, 2831, 2980, 3325, 3500, 3725, 3800, 4172, 4750, 5215, 5320, 5662, 5960, 6650, 7000, 7450, 8344, 9500, 10430, 11324, 13300, 14155, 14900, 16625, 18625, 19000, 19817, 20860, 22648, 26075, 26600, 28310, 29800, 33250, 37250, 39634, 41720, 52150, 56620, 66500, 70775, 74500, 79268, 99085, 104300, 113240, 130375, 133000, 141550, 149000, 158536, 198170, 208600, 260750, 283100, 353875, 396340, 495425, 521500, 566200, 707750, 792680, 990850, 1043000, 1415500, 1981700, 2477125, 2831000, 3963400, 4954250, 9908500, 19817000]

約数ペア:

[(1, 19817000), (2, 9908500), (4, 4954250), (5, 3963400), (7, 2831000), (8, 2477125), (10, 1981700), (14, 1415500), (19, 1043000), (20, 990850), (25, 792680), (28, 707750), (35, 566200), (38, 521500), (40, 495425), (50, 396340), (56, 353875), (70, 283100), (76, 260750), (95, 208600), (100, 198170), (125, 158536), (133, 149000), (140, 141550), (149, 133000), (152, 130375), (175, 113240), (190, 104300), (200, 99085), (250, 79268), (266, 74500), (280, 70775), (298, 66500), (350, 56620), (380, 52150), (475, 41720), (500, 39634), (532, 37250), (596, 33250), (665, 29800), (700, 28310), (745, 26600), (760, 26075), (875, 22648), (950, 20860), (1000, 19817), (1043, 19000), (1064, 18625), (1192, 16625), (1330, 14900), (1400, 14155), (1490, 13300), (1750, 11324), (1900, 10430), (2086, 9500), (2375, 8344), (2660, 7450), (2831, 7000), (2980, 6650), (3325, 5960), (3500, 5662), (3725, 5320), (3800, 5215), (4172, 4750)]