61720470

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{313}}^2$

素因数の和:646

約数の個数: 72

約数和(自身を含む): 183985776

約数和(自身を除く): 122265306

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 313, 315, 626, 630, 939, 1565, 1878, 2191, 2817, 3130, 4382, 4695, 5634, 6573, 9390, 10955, 13146, 14085, 19719, 21910, 28170, 32865, 39438, 65730, 97969, 98595, 195938, 197190, 293907, 489845, 587814, 685783, 881721, 979690, 1371566, 1469535, 1763442, 2057349, 2939070, 3428915, 4114698, 4408605, 6172047, 6857830, 8817210, 10286745, 12344094, 20573490, 30860235, 61720470]

約数ペア:

[(1, 61720470), (2, 30860235), (3, 20573490), (5, 12344094), (6, 10286745), (7, 8817210), (9, 6857830), (10, 6172047), (14, 4408605), (15, 4114698), (18, 3428915), (21, 2939070), (30, 2057349), (35, 1763442), (42, 1469535), (45, 1371566), (63, 979690), (70, 881721), (90, 685783), (105, 587814), (126, 489845), (210, 293907), (313, 197190), (315, 195938), (626, 98595), (630, 97969), (939, 65730), (1565, 39438), (1878, 32865), (2191, 28170), (2817, 21910), (3130, 19719), (4382, 14085), (4695, 13146), (5634, 10955), (6573, 9390)]