81859410

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 128

約数和(自身を含む): 233798400

約数和(自身を除く): 151938990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 197, 243, 270, 285, 342, 394, 405, 486, 513, 570, 591, 729, 810, 855, 985, 1026, 1182, 1215, 1458, 1539, 1710, 1773, 1970, 2187, 2430, 2565, 2955, 3078, 3546, 3645, 3743, 4374, 4617, 5130, 5319, 5910, 7290, 7486, 7695, 8865, 9234, 10638, 10935, 11229, 13851, 15390, 15957, 17730, 18715, 21870, 22458, 23085, 26595, 27702, 31914, 33687, 37430, 41553, 46170, 47871, 53190, 56145, 67374, 69255, 79785, 83106, 95742, 101061, 112290, 138510, 143613, 159570, 168435, 202122, 207765, 239355, 287226, 303183, 336870, 415530, 430839, 478710, 505305, 606366, 718065, 861678, 909549, 1010610, 1436130, 1515915, 1819098, 2154195, 2728647, 3031830, 4308390, 4547745, 5457294, 8185941, 9095490, 13643235, 16371882, 27286470, 40929705, 81859410]

約数ペア:

[(1, 81859410), (2, 40929705), (3, 27286470), (5, 16371882), (6, 13643235), (9, 9095490), (10, 8185941), (15, 5457294), (18, 4547745), (19, 4308390), (27, 3031830), (30, 2728647), (38, 2154195), (45, 1819098), (54, 1515915), (57, 1436130), (81, 1010610), (90, 909549), (95, 861678), (114, 718065), (135, 606366), (162, 505305), (171, 478710), (190, 430839), (197, 415530), (243, 336870), (270, 303183), (285, 287226), (342, 239355), (394, 207765), (405, 202122), (486, 168435), (513, 159570), (570, 143613), (591, 138510), (729, 112290), (810, 101061), (855, 95742), (985, 83106), (1026, 79785), (1182, 69255), (1215, 67374), (1458, 56145), (1539, 53190), (1710, 47871), (1773, 46170), (1970, 41553), (2187, 37430), (2430, 33687), (2565, 31914), (2955, 27702), (3078, 26595), (3546, 23085), (3645, 22458), (3743, 21870), (4374, 18715), (4617, 17730), (5130, 15957), (5319, 15390), (5910, 13851), (7290, 11229), (7486, 10935), (7695, 10638), (8865, 9234)]