31480872

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 91238400

約数和(自身を除く): 59757528

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 31, 34, 38, 51, 57, 62, 68, 76, 93, 102, 114, 124, 131, 136, 152, 186, 204, 228, 248, 262, 323, 372, 393, 408, 456, 524, 527, 589, 646, 744, 786, 969, 1048, 1054, 1178, 1292, 1572, 1581, 1767, 1938, 2108, 2227, 2356, 2489, 2584, 3144, 3162, 3534, 3876, 4061, 4216, 4454, 4712, 4978, 6324, 6681, 7068, 7467, 7752, 8122, 8908, 9956, 10013, 12183, 12648, 13362, 14136, 14934, 16244, 17816, 19912, 20026, 24366, 26724, 29868, 30039, 32488, 40052, 42313, 48732, 53448, 59736, 60078, 69037, 77159, 80104, 84626, 97464, 120156, 126939, 138074, 154318, 169252, 207111, 231477, 240312, 253878, 276148, 308636, 338504, 414222, 462954, 507756, 552296, 617272, 828444, 925908, 1015512, 1311703, 1656888, 1851816, 2623406, 3935109, 5246812, 7870218, 10493624, 15740436, 31480872]

約数ペア:

[(1, 31480872), (2, 15740436), (3, 10493624), (4, 7870218), (6, 5246812), (8, 3935109), (12, 2623406), (17, 1851816), (19, 1656888), (24, 1311703), (31, 1015512), (34, 925908), (38, 828444), (51, 617272), (57, 552296), (62, 507756), (68, 462954), (76, 414222), (93, 338504), (102, 308636), (114, 276148), (124, 253878), (131, 240312), (136, 231477), (152, 207111), (186, 169252), (204, 154318), (228, 138074), (248, 126939), (262, 120156), (323, 97464), (372, 84626), (393, 80104), (408, 77159), (456, 69037), (524, 60078), (527, 59736), (589, 53448), (646, 48732), (744, 42313), (786, 40052), (969, 32488), (1048, 30039), (1054, 29868), (1178, 26724), (1292, 24366), (1572, 20026), (1581, 19912), (1767, 17816), (1938, 16244), (2108, 14934), (2227, 14136), (2356, 13362), (2489, 12648), (2584, 12183), (3144, 10013), (3162, 9956), (3534, 8908), (3876, 8122), (4061, 7752), (4216, 7467), (4454, 7068), (4712, 6681), (4978, 6324)]