81796245720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1223}}^1\times {\mathrm{79621}}^1$

素因数の和:80865

約数の個数: 128

約数和(自身を含む): 280677104640

約数和(自身を除く): 198880858920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1223, 2446, 3669, 4892, 6115, 7338, 8561, 9784, 12230, 14676, 17122, 18345, 24460, 25683, 29352, 34244, 36690, 42805, 48920, 51366, 68488, 73380, 79621, 85610, 102732, 128415, 146760, 159242, 171220, 205464, 238863, 256830, 318484, 342440, 398105, 477726, 513660, 557347, 636968, 796210, 955452, 1027320, 1114694, 1194315, 1592420, 1672041, 1910904, 2229388, 2388630, 2786735, 3184840, 3344082, 4458776, 4777260, 5573470, 6688164, 8360205, 9554520, 11146940, 13376328, 16720410, 22293880, 33440820, 66881640, 97376483, 194752966, 292129449, 389505932, 486882415, 584258898, 681635381, 779011864, 973764830, 1168517796, 1363270762, 1460647245, 1947529660, 2044906143, 2337035592, 2726541524, 2921294490, 3408176905, 3895059320, 4089812286, 5453083048, 5842588980, 6816353810, 8179624572, 10224530715, 11685177960, 13632707620, 16359249144, 20449061430, 27265415240, 40898122860, 81796245720]

約数ペア:

[(1, 81796245720), (2, 40898122860), (3, 27265415240), (4, 20449061430), (5, 16359249144), (6, 13632707620), (7, 11685177960), (8, 10224530715), (10, 8179624572), (12, 6816353810), (14, 5842588980), (15, 5453083048), (20, 4089812286), (21, 3895059320), (24, 3408176905), (28, 2921294490), (30, 2726541524), (35, 2337035592), (40, 2044906143), (42, 1947529660), (56, 1460647245), (60, 1363270762), (70, 1168517796), (84, 973764830), (105, 779011864), (120, 681635381), (140, 584258898), (168, 486882415), (210, 389505932), (280, 292129449), (420, 194752966), (840, 97376483), (1223, 66881640), (2446, 33440820), (3669, 22293880), (4892, 16720410), (6115, 13376328), (7338, 11146940), (8561, 9554520), (9784, 8360205), (12230, 6688164), (14676, 5573470), (17122, 4777260), (18345, 4458776), (24460, 3344082), (25683, 3184840), (29352, 2786735), (34244, 2388630), (36690, 2229388), (42805, 1910904), (48920, 1672041), (51366, 1592420), (68488, 1194315), (73380, 1114694), (79621, 1027320), (85610, 955452), (102732, 796210), (128415, 636968), (146760, 557347), (159242, 513660), (171220, 477726), (205464, 398105), (238863, 342440), (256830, 318484)]