18391291880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{16069}}^1$

素因数の和:16195

約数の個数: 128

約数和(自身を含む): 46651852800

約数和(自身を除く): 28260560920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 71, 104, 124, 130, 142, 155, 248, 260, 284, 310, 355, 403, 520, 568, 620, 710, 806, 923, 1240, 1420, 1612, 1846, 2015, 2201, 2840, 3224, 3692, 4030, 4402, 4615, 7384, 8060, 8804, 9230, 11005, 16069, 16120, 17608, 18460, 22010, 28613, 32138, 36920, 44020, 57226, 64276, 80345, 88040, 114452, 128552, 143065, 160690, 208897, 228904, 286130, 321380, 417794, 498139, 572260, 642760, 835588, 996278, 1044485, 1140899, 1144520, 1671176, 1992556, 2088970, 2281798, 2490695, 3985112, 4177940, 4563596, 4981390, 5704495, 6475807, 8355880, 9127192, 9962780, 11408990, 12951614, 14831687, 19925560, 22817980, 25903228, 29663374, 32379035, 35367869, 45635960, 51806456, 59326748, 64758070, 70735738, 74158435, 118653496, 129516140, 141471476, 148316870, 176839345, 259032280, 282942952, 296633740, 353678690, 459782297, 593267480, 707357380, 919564594, 1414714760, 1839129188, 2298911485, 3678258376, 4597822970, 9195645940, 18391291880]

約数ペア:

[(1, 18391291880), (2, 9195645940), (4, 4597822970), (5, 3678258376), (8, 2298911485), (10, 1839129188), (13, 1414714760), (20, 919564594), (26, 707357380), (31, 593267480), (40, 459782297), (52, 353678690), (62, 296633740), (65, 282942952), (71, 259032280), (104, 176839345), (124, 148316870), (130, 141471476), (142, 129516140), (155, 118653496), (248, 74158435), (260, 70735738), (284, 64758070), (310, 59326748), (355, 51806456), (403, 45635960), (520, 35367869), (568, 32379035), (620, 29663374), (710, 25903228), (806, 22817980), (923, 19925560), (1240, 14831687), (1420, 12951614), (1612, 11408990), (1846, 9962780), (2015, 9127192), (2201, 8355880), (2840, 6475807), (3224, 5704495), (3692, 4981390), (4030, 4563596), (4402, 4177940), (4615, 3985112), (7384, 2490695), (8060, 2281798), (8804, 2088970), (9230, 1992556), (11005, 1671176), (16069, 1144520), (16120, 1140899), (17608, 1044485), (18460, 996278), (22010, 835588), (28613, 642760), (32138, 572260), (36920, 498139), (44020, 417794), (57226, 321380), (64276, 286130), (80345, 228904), (88040, 208897), (114452, 160690), (128552, 143065)]