78325000

素因数分解:

$2^3\times 5^5\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 198502920

約数和(自身を除く): 120177920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 241, 250, 260, 325, 482, 500, 520, 625, 650, 964, 1000, 1205, 1250, 1300, 1625, 1928, 2410, 2500, 2600, 3125, 3133, 3250, 4820, 5000, 6025, 6250, 6266, 6500, 8125, 9640, 12050, 12500, 12532, 13000, 15665, 16250, 24100, 25000, 25064, 30125, 31330, 32500, 40625, 48200, 60250, 62660, 65000, 78325, 81250, 120500, 125320, 150625, 156650, 162500, 241000, 301250, 313300, 325000, 391625, 602500, 626600, 753125, 783250, 1205000, 1506250, 1566500, 1958125, 3012500, 3133000, 3916250, 6025000, 7832500, 9790625, 15665000, 19581250, 39162500, 78325000]

約数ペア:

[(1, 78325000), (2, 39162500), (4, 19581250), (5, 15665000), (8, 9790625), (10, 7832500), (13, 6025000), (20, 3916250), (25, 3133000), (26, 3012500), (40, 1958125), (50, 1566500), (52, 1506250), (65, 1205000), (100, 783250), (104, 753125), (125, 626600), (130, 602500), (200, 391625), (241, 325000), (250, 313300), (260, 301250), (325, 241000), (482, 162500), (500, 156650), (520, 150625), (625, 125320), (650, 120500), (964, 81250), (1000, 78325), (1205, 65000), (1250, 62660), (1300, 60250), (1625, 48200), (1928, 40625), (2410, 32500), (2500, 31330), (2600, 30125), (3125, 25064), (3133, 25000), (3250, 24100), (4820, 16250), (5000, 15665), (6025, 13000), (6250, 12532), (6266, 12500), (6500, 12050), (8125, 9640)]