155388800

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{991}}^1$

素因数の和:1029

約数の個数: 144

約数和(自身を含む): 446980320

約数和(自身を除く): 291591520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 448, 490, 560, 640, 700, 784, 800, 896, 980, 991, 1120, 1225, 1400, 1568, 1600, 1960, 1982, 2240, 2450, 2800, 3136, 3200, 3920, 3964, 4480, 4900, 4955, 5600, 6272, 6937, 7840, 7928, 9800, 9910, 11200, 13874, 15680, 15856, 19600, 19820, 22400, 24775, 27748, 31360, 31712, 34685, 39200, 39640, 48559, 49550, 55496, 63424, 69370, 78400, 79280, 97118, 99100, 110992, 126848, 138740, 156800, 158560, 173425, 194236, 198200, 221984, 242795, 277480, 317120, 346850, 388472, 396400, 443968, 485590, 554960, 634240, 693700, 776944, 792800, 887936, 971180, 1109920, 1213975, 1387400, 1553888, 1585600, 1942360, 2219840, 2427950, 2774800, 3107776, 3171200, 3884720, 4439680, 4855900, 5549600, 6215552, 7769440, 9711800, 11099200, 15538880, 19423600, 22198400, 31077760, 38847200, 77694400, 155388800]

約数ペア:

[(1, 155388800), (2, 77694400), (4, 38847200), (5, 31077760), (7, 22198400), (8, 19423600), (10, 15538880), (14, 11099200), (16, 9711800), (20, 7769440), (25, 6215552), (28, 5549600), (32, 4855900), (35, 4439680), (40, 3884720), (49, 3171200), (50, 3107776), (56, 2774800), (64, 2427950), (70, 2219840), (80, 1942360), (98, 1585600), (100, 1553888), (112, 1387400), (128, 1213975), (140, 1109920), (160, 971180), (175, 887936), (196, 792800), (200, 776944), (224, 693700), (245, 634240), (280, 554960), (320, 485590), (350, 443968), (392, 396400), (400, 388472), (448, 346850), (490, 317120), (560, 277480), (640, 242795), (700, 221984), (784, 198200), (800, 194236), (896, 173425), (980, 158560), (991, 156800), (1120, 138740), (1225, 126848), (1400, 110992), (1568, 99100), (1600, 97118), (1960, 79280), (1982, 78400), (2240, 69370), (2450, 63424), (2800, 55496), (3136, 49550), (3200, 48559), (3920, 39640), (3964, 39200), (4480, 34685), (4900, 31712), (4955, 31360), (5600, 27748), (6272, 24775), (6937, 22400), (7840, 19820), (7928, 19600), (9800, 15856), (9910, 15680), (11200, 13874)]