89457700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 206236800

約数和(自身を除く): 116779100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 197, 239, 380, 394, 475, 478, 788, 950, 956, 985, 1195, 1900, 1970, 2390, 3743, 3940, 4541, 4780, 4925, 5975, 7486, 9082, 9850, 11950, 14972, 18164, 18715, 19700, 22705, 23900, 37430, 45410, 47083, 74860, 90820, 93575, 94166, 113525, 187150, 188332, 227050, 235415, 374300, 454100, 470830, 894577, 941660, 1177075, 1789154, 2354150, 3578308, 4472885, 4708300, 8945770, 17891540, 22364425, 44728850, 89457700]

約数ペア:

[(1, 89457700), (2, 44728850), (4, 22364425), (5, 17891540), (10, 8945770), (19, 4708300), (20, 4472885), (25, 3578308), (38, 2354150), (50, 1789154), (76, 1177075), (95, 941660), (100, 894577), (190, 470830), (197, 454100), (239, 374300), (380, 235415), (394, 227050), (475, 188332), (478, 187150), (788, 113525), (950, 94166), (956, 93575), (985, 90820), (1195, 74860), (1900, 47083), (1970, 45410), (2390, 37430), (3743, 23900), (3940, 22705), (4541, 19700), (4780, 18715), (4925, 18164), (5975, 14972), (7486, 11950), (9082, 9850)]