81379272

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 236476800

約数和(自身を除く): 155097528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 67, 68, 78, 102, 104, 134, 136, 156, 201, 204, 221, 229, 268, 312, 402, 408, 442, 458, 536, 663, 687, 804, 871, 884, 916, 1139, 1326, 1374, 1608, 1742, 1768, 1832, 2278, 2613, 2652, 2748, 2977, 3417, 3484, 3893, 4556, 5226, 5304, 5496, 5954, 6834, 6968, 7786, 8931, 9112, 10452, 11679, 11908, 13668, 14807, 15343, 15572, 17862, 20904, 23358, 23816, 27336, 29614, 30686, 31144, 35724, 44421, 46029, 46716, 50609, 59228, 61372, 71448, 88842, 92058, 93432, 101218, 118456, 122744, 151827, 177684, 184116, 199459, 202436, 260831, 303654, 355368, 368232, 398918, 404872, 521662, 598377, 607308, 782493, 797836, 1043324, 1196754, 1214616, 1564986, 1595672, 2086648, 2393508, 3129972, 3390803, 4787016, 6259944, 6781606, 10172409, 13563212, 20344818, 27126424, 40689636, 81379272]

約数ペア:

[(1, 81379272), (2, 40689636), (3, 27126424), (4, 20344818), (6, 13563212), (8, 10172409), (12, 6781606), (13, 6259944), (17, 4787016), (24, 3390803), (26, 3129972), (34, 2393508), (39, 2086648), (51, 1595672), (52, 1564986), (67, 1214616), (68, 1196754), (78, 1043324), (102, 797836), (104, 782493), (134, 607308), (136, 598377), (156, 521662), (201, 404872), (204, 398918), (221, 368232), (229, 355368), (268, 303654), (312, 260831), (402, 202436), (408, 199459), (442, 184116), (458, 177684), (536, 151827), (663, 122744), (687, 118456), (804, 101218), (871, 93432), (884, 92058), (916, 88842), (1139, 71448), (1326, 61372), (1374, 59228), (1608, 50609), (1742, 46716), (1768, 46029), (1832, 44421), (2278, 35724), (2613, 31144), (2652, 30686), (2748, 29614), (2977, 27336), (3417, 23816), (3484, 23358), (3893, 20904), (4556, 17862), (5226, 15572), (5304, 15343), (5496, 14807), (5954, 13668), (6834, 11908), (6968, 11679), (7786, 10452), (8931, 9112)]