20970297416

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:591

約数の個数: 128

約数和(自身を含む): 43635024000

約数和(自身を除く): 22664726584

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 107, 116, 152, 173, 214, 232, 257, 346, 428, 514, 551, 692, 856, 1028, 1102, 1384, 2033, 2056, 2204, 3103, 3287, 4066, 4408, 4883, 5017, 6206, 6574, 7453, 8132, 9766, 10034, 12412, 13148, 14906, 16264, 18511, 19532, 20068, 24824, 26296, 27499, 29812, 37022, 39064, 40136, 44461, 54998, 58957, 59624, 74044, 88922, 95323, 109996, 117914, 141607, 148088, 177844, 190646, 219992, 235828, 283214, 351709, 355688, 381292, 471656, 522481, 536819, 566428, 703418, 762584, 797471, 844759, 1044962, 1073638, 1132856, 1289369, 1406836, 1594942, 1689518, 2089924, 2147276, 2578738, 2813672, 3189884, 3379036, 4179848, 4294552, 4757327, 5157476, 6379768, 6758072, 9514654, 10199561, 10314952, 15151949, 19029308, 20399122, 24498011, 30303898, 38058616, 40798244, 48996022, 60607796, 81596488, 90389213, 97992044, 121215592, 137962483, 180778426, 195984088, 275924966, 361556852, 551849932, 723113704, 1103699864, 2621287177, 5242574354, 10485148708, 20970297416]

約数ペア:

[(1, 20970297416), (2, 10485148708), (4, 5242574354), (8, 2621287177), (19, 1103699864), (29, 723113704), (38, 551849932), (58, 361556852), (76, 275924966), (107, 195984088), (116, 180778426), (152, 137962483), (173, 121215592), (214, 97992044), (232, 90389213), (257, 81596488), (346, 60607796), (428, 48996022), (514, 40798244), (551, 38058616), (692, 30303898), (856, 24498011), (1028, 20399122), (1102, 19029308), (1384, 15151949), (2033, 10314952), (2056, 10199561), (2204, 9514654), (3103, 6758072), (3287, 6379768), (4066, 5157476), (4408, 4757327), (4883, 4294552), (5017, 4179848), (6206, 3379036), (6574, 3189884), (7453, 2813672), (8132, 2578738), (9766, 2147276), (10034, 2089924), (12412, 1689518), (13148, 1594942), (14906, 1406836), (16264, 1289369), (18511, 1132856), (19532, 1073638), (20068, 1044962), (24824, 844759), (26296, 797471), (27499, 762584), (29812, 703418), (37022, 566428), (39064, 536819), (40136, 522481), (44461, 471656), (54998, 381292), (58957, 355688), (59624, 351709), (74044, 283214), (88922, 235828), (95323, 219992), (109996, 190646), (117914, 177844), (141607, 148088)]