289498240

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:390

約数の個数: 128

約数和(自身を含む): 734987520

約数和(自身を除く): 445489280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 71, 80, 92, 115, 128, 142, 160, 184, 230, 277, 284, 320, 355, 368, 460, 554, 568, 640, 710, 736, 920, 1108, 1136, 1385, 1420, 1472, 1633, 1840, 2216, 2272, 2770, 2840, 2944, 3266, 3680, 4432, 4544, 5540, 5680, 6371, 6532, 7360, 8165, 8864, 9088, 11080, 11360, 12742, 13064, 14720, 16330, 17728, 19667, 22160, 22720, 25484, 26128, 31855, 32660, 35456, 39334, 44320, 45440, 50968, 52256, 63710, 65320, 78668, 88640, 98335, 101936, 104512, 127420, 130640, 157336, 177280, 196670, 203872, 209024, 254840, 261280, 314672, 393340, 407744, 452341, 509680, 522560, 629344, 786680, 815488, 904682, 1019360, 1045120, 1258688, 1573360, 1809364, 2038720, 2261705, 2517376, 3146720, 3618728, 4077440, 4523410, 6293440, 7237456, 9046820, 12586880, 14474912, 18093640, 28949824, 36187280, 57899648, 72374560, 144749120, 289498240]

約数ペア:

[(1, 289498240), (2, 144749120), (4, 72374560), (5, 57899648), (8, 36187280), (10, 28949824), (16, 18093640), (20, 14474912), (23, 12586880), (32, 9046820), (40, 7237456), (46, 6293440), (64, 4523410), (71, 4077440), (80, 3618728), (92, 3146720), (115, 2517376), (128, 2261705), (142, 2038720), (160, 1809364), (184, 1573360), (230, 1258688), (277, 1045120), (284, 1019360), (320, 904682), (355, 815488), (368, 786680), (460, 629344), (554, 522560), (568, 509680), (640, 452341), (710, 407744), (736, 393340), (920, 314672), (1108, 261280), (1136, 254840), (1385, 209024), (1420, 203872), (1472, 196670), (1633, 177280), (1840, 157336), (2216, 130640), (2272, 127420), (2770, 104512), (2840, 101936), (2944, 98335), (3266, 88640), (3680, 78668), (4432, 65320), (4544, 63710), (5540, 52256), (5680, 50968), (6371, 45440), (6532, 44320), (7360, 39334), (8165, 35456), (8864, 32660), (9088, 31855), (11080, 26128), (11360, 25484), (12742, 22720), (13064, 22160), (14720, 19667), (16330, 17728)]