72999920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2137}}^1$

素因数の和:2218

約数の個数: 80

約数和(自身を含む): 197243328

約数和(自身を除く): 124243408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2137, 2440, 3416, 4270, 4274, 4880, 6832, 8540, 8548, 10685, 14959, 17080, 17096, 21370, 29918, 34160, 34192, 42740, 59836, 74795, 85480, 119672, 130357, 149590, 170960, 239344, 260714, 299180, 521428, 598360, 651785, 912499, 1042856, 1196720, 1303570, 1824998, 2085712, 2607140, 3649996, 4562495, 5214280, 7299992, 9124990, 10428560, 14599984, 18249980, 36499960, 72999920]

約数ペア:

[(1, 72999920), (2, 36499960), (4, 18249980), (5, 14599984), (7, 10428560), (8, 9124990), (10, 7299992), (14, 5214280), (16, 4562495), (20, 3649996), (28, 2607140), (35, 2085712), (40, 1824998), (56, 1303570), (61, 1196720), (70, 1042856), (80, 912499), (112, 651785), (122, 598360), (140, 521428), (244, 299180), (280, 260714), (305, 239344), (427, 170960), (488, 149590), (560, 130357), (610, 119672), (854, 85480), (976, 74795), (1220, 59836), (1708, 42740), (2135, 34192), (2137, 34160), (2440, 29918), (3416, 21370), (4270, 17096), (4274, 17080), (4880, 14959), (6832, 10685), (8540, 8548)]