199330000

素因数分解:

$2^4\times 5^4\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:702

約数の個数: 100

約数和(自身を含む): 498940288

約数和(自身を除く): 299610288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 620, 625, 643, 775, 1000, 1240, 1250, 1286, 1550, 2000, 2480, 2500, 2572, 3100, 3215, 3875, 5000, 5144, 6200, 6430, 7750, 10000, 10288, 12400, 12860, 15500, 16075, 19375, 19933, 25720, 31000, 32150, 38750, 39866, 51440, 62000, 64300, 77500, 79732, 80375, 99665, 128600, 155000, 159464, 160750, 199330, 257200, 310000, 318928, 321500, 398660, 401875, 498325, 643000, 797320, 803750, 996650, 1286000, 1594640, 1607500, 1993300, 2491625, 3215000, 3986600, 4983250, 6430000, 7973200, 9966500, 12458125, 19933000, 24916250, 39866000, 49832500, 99665000, 199330000]

約数ペア:

[(1, 199330000), (2, 99665000), (4, 49832500), (5, 39866000), (8, 24916250), (10, 19933000), (16, 12458125), (20, 9966500), (25, 7973200), (31, 6430000), (40, 4983250), (50, 3986600), (62, 3215000), (80, 2491625), (100, 1993300), (124, 1607500), (125, 1594640), (155, 1286000), (200, 996650), (248, 803750), (250, 797320), (310, 643000), (400, 498325), (496, 401875), (500, 398660), (620, 321500), (625, 318928), (643, 310000), (775, 257200), (1000, 199330), (1240, 160750), (1250, 159464), (1286, 155000), (1550, 128600), (2000, 99665), (2480, 80375), (2500, 79732), (2572, 77500), (3100, 64300), (3215, 62000), (3875, 51440), (5000, 39866), (5144, 38750), (6200, 32150), (6430, 31000), (7750, 25720), (10000, 19933), (10288, 19375), (12400, 16075), (12860, 15500)]