19995570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1867}}^1$

素因数の和:1904

約数の個数: 96

約数和(自身を含む): 62944128

約数和(自身を除く): 42948558

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 51, 63, 70, 85, 90, 102, 105, 119, 126, 153, 170, 210, 238, 255, 306, 315, 357, 510, 595, 630, 714, 765, 1071, 1190, 1530, 1785, 1867, 2142, 3570, 3734, 5355, 5601, 9335, 10710, 11202, 13069, 16803, 18670, 26138, 28005, 31739, 33606, 39207, 56010, 63478, 65345, 78414, 84015, 95217, 117621, 130690, 158695, 168030, 190434, 196035, 222173, 235242, 285651, 317390, 392070, 444346, 476085, 571302, 588105, 666519, 952170, 1110865, 1176210, 1333038, 1428255, 1999557, 2221730, 2856510, 3332595, 3999114, 6665190, 9997785, 19995570]

約数ペア:

[(1, 19995570), (2, 9997785), (3, 6665190), (5, 3999114), (6, 3332595), (7, 2856510), (9, 2221730), (10, 1999557), (14, 1428255), (15, 1333038), (17, 1176210), (18, 1110865), (21, 952170), (30, 666519), (34, 588105), (35, 571302), (42, 476085), (45, 444346), (51, 392070), (63, 317390), (70, 285651), (85, 235242), (90, 222173), (102, 196035), (105, 190434), (119, 168030), (126, 158695), (153, 130690), (170, 117621), (210, 95217), (238, 84015), (255, 78414), (306, 65345), (315, 63478), (357, 56010), (510, 39207), (595, 33606), (630, 31739), (714, 28005), (765, 26138), (1071, 18670), (1190, 16803), (1530, 13069), (1785, 11202), (1867, 10710), (2142, 9335), (3570, 5601), (3734, 5355)]