239421720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:649

約数の個数: 128

約数和(自身を含む): 754790400

約数和(自身を除く): 515368680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 223, 230, 276, 345, 389, 446, 460, 552, 669, 690, 778, 892, 920, 1115, 1167, 1338, 1380, 1556, 1784, 1945, 2230, 2334, 2676, 2760, 3112, 3345, 3890, 4460, 4668, 5129, 5352, 5835, 6690, 7780, 8920, 8947, 9336, 10258, 11670, 13380, 15387, 15560, 17894, 20516, 23340, 25645, 26760, 26841, 30774, 35788, 41032, 44735, 46680, 51290, 53682, 61548, 71576, 76935, 86747, 89470, 102580, 107364, 123096, 134205, 153870, 173494, 178940, 205160, 214728, 260241, 268410, 307740, 346988, 357880, 433735, 520482, 536820, 615480, 693976, 867470, 1040964, 1073640, 1301205, 1734940, 1995181, 2081928, 2602410, 3469880, 3990362, 5204820, 5985543, 7980724, 9975905, 10409640, 11971086, 15961448, 19951810, 23942172, 29927715, 39903620, 47884344, 59855430, 79807240, 119710860, 239421720]

約数ペア:

[(1, 239421720), (2, 119710860), (3, 79807240), (4, 59855430), (5, 47884344), (6, 39903620), (8, 29927715), (10, 23942172), (12, 19951810), (15, 15961448), (20, 11971086), (23, 10409640), (24, 9975905), (30, 7980724), (40, 5985543), (46, 5204820), (60, 3990362), (69, 3469880), (92, 2602410), (115, 2081928), (120, 1995181), (138, 1734940), (184, 1301205), (223, 1073640), (230, 1040964), (276, 867470), (345, 693976), (389, 615480), (446, 536820), (460, 520482), (552, 433735), (669, 357880), (690, 346988), (778, 307740), (892, 268410), (920, 260241), (1115, 214728), (1167, 205160), (1338, 178940), (1380, 173494), (1556, 153870), (1784, 134205), (1945, 123096), (2230, 107364), (2334, 102580), (2676, 89470), (2760, 86747), (3112, 76935), (3345, 71576), (3890, 61548), (4460, 53682), (4668, 51290), (5129, 46680), (5352, 44735), (5835, 41032), (6690, 35788), (7780, 30774), (8920, 26841), (8947, 26760), (9336, 25645), (10258, 23340), (11670, 20516), (13380, 17894), (15387, 15560)]