18984648

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 55296000

約数和(自身を除く): 36311352

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 31, 34, 38, 51, 57, 62, 68, 76, 79, 93, 102, 114, 124, 136, 152, 158, 186, 204, 228, 237, 248, 316, 323, 372, 408, 456, 474, 527, 589, 632, 646, 744, 948, 969, 1054, 1178, 1292, 1343, 1501, 1581, 1767, 1896, 1938, 2108, 2356, 2449, 2584, 2686, 3002, 3162, 3534, 3876, 4029, 4216, 4503, 4712, 4898, 5372, 6004, 6324, 7068, 7347, 7752, 8058, 9006, 9796, 10013, 10744, 12008, 12648, 14136, 14694, 16116, 18012, 19592, 20026, 25517, 29388, 30039, 32232, 36024, 40052, 41633, 46531, 51034, 58776, 60078, 76551, 80104, 83266, 93062, 102068, 120156, 124899, 139593, 153102, 166532, 186124, 204136, 240312, 249798, 279186, 306204, 333064, 372248, 499596, 558372, 612408, 791027, 999192, 1116744, 1582054, 2373081, 3164108, 4746162, 6328216, 9492324, 18984648]

約数ペア:

[(1, 18984648), (2, 9492324), (3, 6328216), (4, 4746162), (6, 3164108), (8, 2373081), (12, 1582054), (17, 1116744), (19, 999192), (24, 791027), (31, 612408), (34, 558372), (38, 499596), (51, 372248), (57, 333064), (62, 306204), (68, 279186), (76, 249798), (79, 240312), (93, 204136), (102, 186124), (114, 166532), (124, 153102), (136, 139593), (152, 124899), (158, 120156), (186, 102068), (204, 93062), (228, 83266), (237, 80104), (248, 76551), (316, 60078), (323, 58776), (372, 51034), (408, 46531), (456, 41633), (474, 40052), (527, 36024), (589, 32232), (632, 30039), (646, 29388), (744, 25517), (948, 20026), (969, 19592), (1054, 18012), (1178, 16116), (1292, 14694), (1343, 14136), (1501, 12648), (1581, 12008), (1767, 10744), (1896, 10013), (1938, 9796), (2108, 9006), (2356, 8058), (2449, 7752), (2584, 7347), (2686, 7068), (3002, 6324), (3162, 6004), (3534, 5372), (3876, 4898), (4029, 4712), (4216, 4503)]