1997729838

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2239}}^1$

素因数の和:2335

約数の個数: 128

約数和(自身を含む): 5057740800

約数和(自身を除く): 3060010962

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 41, 54, 62, 78, 82, 93, 117, 123, 186, 234, 246, 279, 351, 369, 403, 533, 558, 702, 738, 806, 837, 1066, 1107, 1209, 1271, 1599, 1674, 2214, 2239, 2418, 2542, 3198, 3627, 3813, 4478, 4797, 6717, 7254, 7626, 9594, 10881, 11439, 13434, 14391, 16523, 20151, 21762, 22878, 28782, 29107, 33046, 34317, 40302, 49569, 58214, 60453, 68634, 69409, 87321, 91799, 99138, 120906, 138818, 148707, 174642, 183598, 208227, 261963, 275397, 297414, 416454, 446121, 523926, 550794, 624681, 785889, 826191, 892242, 902317, 1193387, 1249362, 1571778, 1652382, 1804634, 1874043, 2386774, 2478573, 2706951, 2845769, 3580161, 3748086, 4957146, 5413902, 5691538, 7160322, 8120853, 8537307, 10740483, 16241706, 17074614, 21480966, 24362559, 25611921, 32221449, 36994997, 48725118, 51223842, 64442898, 73989994, 76835763, 110984991, 153671526, 221969982, 332954973, 665909946, 998864919, 1997729838]

約数ペア:

[(1, 1997729838), (2, 998864919), (3, 665909946), (6, 332954973), (9, 221969982), (13, 153671526), (18, 110984991), (26, 76835763), (27, 73989994), (31, 64442898), (39, 51223842), (41, 48725118), (54, 36994997), (62, 32221449), (78, 25611921), (82, 24362559), (93, 21480966), (117, 17074614), (123, 16241706), (186, 10740483), (234, 8537307), (246, 8120853), (279, 7160322), (351, 5691538), (369, 5413902), (403, 4957146), (533, 3748086), (558, 3580161), (702, 2845769), (738, 2706951), (806, 2478573), (837, 2386774), (1066, 1874043), (1107, 1804634), (1209, 1652382), (1271, 1571778), (1599, 1249362), (1674, 1193387), (2214, 902317), (2239, 892242), (2418, 826191), (2542, 785889), (3198, 624681), (3627, 550794), (3813, 523926), (4478, 446121), (4797, 416454), (6717, 297414), (7254, 275397), (7626, 261963), (9594, 208227), (10881, 183598), (11439, 174642), (13434, 148707), (14391, 138818), (16523, 120906), (20151, 99138), (21762, 91799), (22878, 87321), (28782, 69409), (29107, 68634), (33046, 60453), (34317, 58214), (40302, 49569)]