18891569240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{983}}^1$

素因数の和:1233

約数の個数: 128

約数和(自身を含む): 44226155520

約数和(自身を除く): 25334586280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 101, 134, 142, 202, 268, 284, 335, 355, 404, 505, 536, 568, 670, 710, 808, 983, 1010, 1340, 1420, 1966, 2020, 2680, 2840, 3932, 4040, 4757, 4915, 6767, 7171, 7864, 9514, 9830, 13534, 14342, 19028, 19660, 23785, 27068, 28684, 33835, 35855, 38056, 39320, 47570, 54136, 57368, 65861, 67670, 69793, 71710, 95140, 99283, 131722, 135340, 139586, 143420, 190280, 198566, 263444, 270680, 279172, 286840, 329305, 348965, 397132, 480457, 496415, 526888, 558344, 658610, 697930, 794264, 960914, 992830, 1317220, 1395860, 1921828, 1985660, 2402285, 2634440, 2791720, 3843656, 3971320, 4676131, 4804570, 6651961, 7049093, 9352262, 9609140, 13303922, 14098186, 18704524, 19218280, 23380655, 26607844, 28196372, 33259805, 35245465, 37409048, 46761310, 53215688, 56392744, 66519610, 70490930, 93522620, 133039220, 140981860, 187045240, 266078440, 281963720, 472289231, 944578462, 1889156924, 2361446155, 3778313848, 4722892310, 9445784620, 18891569240]

約数ペア:

[(1, 18891569240), (2, 9445784620), (4, 4722892310), (5, 3778313848), (8, 2361446155), (10, 1889156924), (20, 944578462), (40, 472289231), (67, 281963720), (71, 266078440), (101, 187045240), (134, 140981860), (142, 133039220), (202, 93522620), (268, 70490930), (284, 66519610), (335, 56392744), (355, 53215688), (404, 46761310), (505, 37409048), (536, 35245465), (568, 33259805), (670, 28196372), (710, 26607844), (808, 23380655), (983, 19218280), (1010, 18704524), (1340, 14098186), (1420, 13303922), (1966, 9609140), (2020, 9352262), (2680, 7049093), (2840, 6651961), (3932, 4804570), (4040, 4676131), (4757, 3971320), (4915, 3843656), (6767, 2791720), (7171, 2634440), (7864, 2402285), (9514, 1985660), (9830, 1921828), (13534, 1395860), (14342, 1317220), (19028, 992830), (19660, 960914), (23785, 794264), (27068, 697930), (28684, 658610), (33835, 558344), (35855, 526888), (38056, 496415), (39320, 480457), (47570, 397132), (54136, 348965), (57368, 329305), (65861, 286840), (67670, 279172), (69793, 270680), (71710, 263444), (95140, 198566), (99283, 190280), (131722, 143420), (135340, 139586)]