123454240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 192

約数和(自身を含む): 367476480

約数和(自身を除く): 244022240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 61, 65, 70, 80, 91, 104, 112, 122, 130, 139, 140, 160, 182, 208, 224, 244, 260, 278, 280, 305, 364, 416, 427, 455, 488, 520, 556, 560, 610, 695, 728, 793, 854, 910, 973, 976, 1040, 1112, 1120, 1220, 1390, 1456, 1586, 1708, 1807, 1820, 1946, 1952, 2080, 2135, 2224, 2440, 2780, 2912, 3172, 3416, 3614, 3640, 3892, 3965, 4270, 4448, 4865, 4880, 5551, 5560, 6344, 6832, 7228, 7280, 7784, 7930, 8479, 8540, 9035, 9730, 9760, 11102, 11120, 12649, 12688, 13664, 14456, 14560, 15568, 15860, 16958, 17080, 18070, 19460, 22204, 22240, 25298, 25376, 27755, 28912, 31136, 31720, 33916, 34160, 36140, 38920, 42395, 44408, 50596, 55510, 57824, 59353, 63245, 63440, 67832, 68320, 72280, 77840, 84790, 88816, 101192, 110227, 111020, 118706, 126490, 126880, 135664, 144560, 155680, 169580, 177632, 202384, 220454, 222040, 237412, 252980, 271328, 289120, 296765, 339160, 404768, 440908, 444080, 474824, 505960, 551135, 593530, 678320, 771589, 881816, 888160, 949648, 1011920, 1102270, 1187060, 1356640, 1543178, 1763632, 1899296, 2023840, 2204540, 2374120, 3086356, 3527264, 3857945, 4409080, 4748240, 6172712, 7715890, 8818160, 9496480, 12345424, 15431780, 17636320, 24690848, 30863560, 61727120, 123454240]

約数ペア:

[(1, 123454240), (2, 61727120), (4, 30863560), (5, 24690848), (7, 17636320), (8, 15431780), (10, 12345424), (13, 9496480), (14, 8818160), (16, 7715890), (20, 6172712), (26, 4748240), (28, 4409080), (32, 3857945), (35, 3527264), (40, 3086356), (52, 2374120), (56, 2204540), (61, 2023840), (65, 1899296), (70, 1763632), (80, 1543178), (91, 1356640), (104, 1187060), (112, 1102270), (122, 1011920), (130, 949648), (139, 888160), (140, 881816), (160, 771589), (182, 678320), (208, 593530), (224, 551135), (244, 505960), (260, 474824), (278, 444080), (280, 440908), (305, 404768), (364, 339160), (416, 296765), (427, 289120), (455, 271328), (488, 252980), (520, 237412), (556, 222040), (560, 220454), (610, 202384), (695, 177632), (728, 169580), (793, 155680), (854, 144560), (910, 135664), (973, 126880), (976, 126490), (1040, 118706), (1112, 111020), (1120, 110227), (1220, 101192), (1390, 88816), (1456, 84790), (1586, 77840), (1708, 72280), (1807, 68320), (1820, 67832), (1946, 63440), (1952, 63245), (2080, 59353), (2135, 57824), (2224, 55510), (2440, 50596), (2780, 44408), (2912, 42395), (3172, 38920), (3416, 36140), (3614, 34160), (3640, 33916), (3892, 31720), (3965, 31136), (4270, 28912), (4448, 27755), (4865, 25376), (4880, 25298), (5551, 22240), (5560, 22204), (6344, 19460), (6832, 18070), (7228, 17080), (7280, 16958), (7784, 15860), (7930, 15568), (8479, 14560), (8540, 14456), (9035, 13664), (9730, 12688), (9760, 12649), (11102, 11120)]