15215695900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{258331}}^1$

素因数の和:258395

約数の個数: 72

約数和(自身を含む): 35877148160

約数和(自身を除く): 20661452260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1550, 1900, 2356, 2945, 3100, 5890, 11780, 14725, 29450, 58900, 258331, 516662, 1033324, 1291655, 2583310, 4908289, 5166620, 6458275, 8008261, 9816578, 12916550, 16016522, 19633156, 24541445, 25833100, 32033044, 40041305, 49082890, 80082610, 98165780, 122707225, 152156959, 160165220, 200206525, 245414450, 304313918, 400413050, 490828900, 608627836, 760784795, 800826100, 1521569590, 3043139180, 3803923975, 7607847950, 15215695900]

約数ペア:

[(1, 15215695900), (2, 7607847950), (4, 3803923975), (5, 3043139180), (10, 1521569590), (19, 800826100), (20, 760784795), (25, 608627836), (31, 490828900), (38, 400413050), (50, 304313918), (62, 245414450), (76, 200206525), (95, 160165220), (100, 152156959), (124, 122707225), (155, 98165780), (190, 80082610), (310, 49082890), (380, 40041305), (475, 32033044), (589, 25833100), (620, 24541445), (775, 19633156), (950, 16016522), (1178, 12916550), (1550, 9816578), (1900, 8008261), (2356, 6458275), (2945, 5166620), (3100, 4908289), (5890, 2583310), (11780, 1291655), (14725, 1033324), (29450, 516662), (58900, 258331)]