254170240

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:630

約数の個数: 128

約数和(自身を含む): 655672320

約数和(自身を除く): 401502080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 230, 248, 310, 320, 368, 460, 496, 557, 620, 640, 713, 736, 920, 992, 1114, 1240, 1426, 1472, 1840, 1984, 2228, 2480, 2785, 2852, 2944, 3565, 3680, 3968, 4456, 4960, 5570, 5704, 7130, 7360, 8912, 9920, 11140, 11408, 12811, 14260, 14720, 17267, 17824, 19840, 22280, 22816, 25622, 28520, 34534, 35648, 44560, 45632, 51244, 57040, 64055, 69068, 71296, 86335, 89120, 91264, 102488, 114080, 128110, 138136, 172670, 178240, 204976, 228160, 256220, 276272, 345340, 356480, 397141, 409952, 456320, 512440, 552544, 690680, 794282, 819904, 1024880, 1105088, 1381360, 1588564, 1639808, 1985705, 2049760, 2210176, 2762720, 3177128, 3971410, 4099520, 5525440, 6354256, 7942820, 8199040, 11050880, 12708512, 15885640, 25417024, 31771280, 50834048, 63542560, 127085120, 254170240]

約数ペア:

[(1, 254170240), (2, 127085120), (4, 63542560), (5, 50834048), (8, 31771280), (10, 25417024), (16, 15885640), (20, 12708512), (23, 11050880), (31, 8199040), (32, 7942820), (40, 6354256), (46, 5525440), (62, 4099520), (64, 3971410), (80, 3177128), (92, 2762720), (115, 2210176), (124, 2049760), (128, 1985705), (155, 1639808), (160, 1588564), (184, 1381360), (230, 1105088), (248, 1024880), (310, 819904), (320, 794282), (368, 690680), (460, 552544), (496, 512440), (557, 456320), (620, 409952), (640, 397141), (713, 356480), (736, 345340), (920, 276272), (992, 256220), (1114, 228160), (1240, 204976), (1426, 178240), (1472, 172670), (1840, 138136), (1984, 128110), (2228, 114080), (2480, 102488), (2785, 91264), (2852, 89120), (2944, 86335), (3565, 71296), (3680, 69068), (3968, 64055), (4456, 57040), (4960, 51244), (5570, 45632), (5704, 44560), (7130, 35648), (7360, 34534), (8912, 28520), (9920, 25622), (11140, 22816), (11408, 22280), (12811, 19840), (14260, 17824), (14720, 17267)]