90110720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 251657280

約数和(自身を除く): 161546560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 113, 128, 140, 160, 178, 224, 226, 256, 280, 320, 356, 445, 448, 452, 560, 565, 623, 640, 712, 791, 890, 896, 904, 1120, 1130, 1246, 1280, 1424, 1582, 1780, 1792, 1808, 2240, 2260, 2492, 2848, 3115, 3164, 3560, 3616, 3955, 4480, 4520, 4984, 5696, 6230, 6328, 7120, 7232, 7910, 8960, 9040, 9968, 10057, 11392, 12460, 12656, 14240, 14464, 15820, 18080, 19936, 20114, 22784, 24920, 25312, 28480, 28928, 31640, 36160, 39872, 40228, 49840, 50285, 50624, 56960, 63280, 70399, 72320, 79744, 80456, 99680, 100570, 101248, 113920, 126560, 140798, 144640, 159488, 160912, 199360, 201140, 202496, 253120, 281596, 321824, 351995, 398720, 402280, 506240, 563192, 643648, 703990, 797440, 804560, 1012480, 1126384, 1287296, 1407980, 1609120, 2252768, 2574592, 2815960, 3218240, 4505536, 5631920, 6436480, 9011072, 11263840, 12872960, 18022144, 22527680, 45055360, 90110720]

約数ペア:

[(1, 90110720), (2, 45055360), (4, 22527680), (5, 18022144), (7, 12872960), (8, 11263840), (10, 9011072), (14, 6436480), (16, 5631920), (20, 4505536), (28, 3218240), (32, 2815960), (35, 2574592), (40, 2252768), (56, 1609120), (64, 1407980), (70, 1287296), (80, 1126384), (89, 1012480), (112, 804560), (113, 797440), (128, 703990), (140, 643648), (160, 563192), (178, 506240), (224, 402280), (226, 398720), (256, 351995), (280, 321824), (320, 281596), (356, 253120), (445, 202496), (448, 201140), (452, 199360), (560, 160912), (565, 159488), (623, 144640), (640, 140798), (712, 126560), (791, 113920), (890, 101248), (896, 100570), (904, 99680), (1120, 80456), (1130, 79744), (1246, 72320), (1280, 70399), (1424, 63280), (1582, 56960), (1780, 50624), (1792, 50285), (1808, 49840), (2240, 40228), (2260, 39872), (2492, 36160), (2848, 31640), (3115, 28928), (3164, 28480), (3560, 25312), (3616, 24920), (3955, 22784), (4480, 20114), (4520, 19936), (4984, 18080), (5696, 15820), (6230, 14464), (6328, 14240), (7120, 12656), (7232, 12460), (7910, 11392), (8960, 10057), (9040, 9968)]