1310981880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{1613}}^1$

素因数の和:2161

約数の個数: 128

約数和(自身を含む): 4246240320

約数和(自身を除く): 2935258440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 521, 780, 1042, 1560, 1563, 1613, 2084, 2605, 3126, 3226, 4168, 4839, 5210, 6252, 6452, 6773, 7815, 8065, 9678, 10420, 12504, 12904, 13546, 15630, 16130, 19356, 20319, 20840, 20969, 24195, 27092, 31260, 32260, 33865, 38712, 40638, 41938, 48390, 54184, 62520, 62907, 64520, 67730, 81276, 83876, 96780, 101595, 104845, 125814, 135460, 162552, 167752, 193560, 203190, 209690, 251628, 270920, 314535, 406380, 419380, 503256, 629070, 812760, 838760, 840373, 1258140, 1680746, 2516280, 2521119, 3361492, 4201865, 5042238, 6722984, 8403730, 10084476, 10924849, 12605595, 16807460, 20168952, 21849698, 25211190, 32774547, 33614920, 43699396, 50422380, 54624245, 65549094, 87398792, 100844760, 109248490, 131098188, 163872735, 218496980, 262196376, 327745470, 436993960, 655490940, 1310981880]

約数ペア:

[(1, 1310981880), (2, 655490940), (3, 436993960), (4, 327745470), (5, 262196376), (6, 218496980), (8, 163872735), (10, 131098188), (12, 109248490), (13, 100844760), (15, 87398792), (20, 65549094), (24, 54624245), (26, 50422380), (30, 43699396), (39, 33614920), (40, 32774547), (52, 25211190), (60, 21849698), (65, 20168952), (78, 16807460), (104, 12605595), (120, 10924849), (130, 10084476), (156, 8403730), (195, 6722984), (260, 5042238), (312, 4201865), (390, 3361492), (520, 2521119), (521, 2516280), (780, 1680746), (1042, 1258140), (1560, 840373), (1563, 838760), (1613, 812760), (2084, 629070), (2605, 503256), (3126, 419380), (3226, 406380), (4168, 314535), (4839, 270920), (5210, 251628), (6252, 209690), (6452, 203190), (6773, 193560), (7815, 167752), (8065, 162552), (9678, 135460), (10420, 125814), (12504, 104845), (12904, 101595), (13546, 96780), (15630, 83876), (16130, 81276), (19356, 67730), (20319, 64520), (20840, 62907), (20969, 62520), (24195, 54184), (27092, 48390), (31260, 41938), (32260, 40638), (33865, 38712)]