161973760

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 160

約数和(自身を含む): 434472192

約数和(自身を除く): 272498432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 157, 160, 208, 248, 256, 260, 310, 314, 320, 403, 416, 496, 512, 520, 620, 628, 640, 785, 806, 832, 992, 1040, 1240, 1256, 1280, 1570, 1612, 1664, 1984, 2015, 2041, 2080, 2480, 2512, 2560, 3140, 3224, 3328, 3968, 4030, 4082, 4160, 4867, 4960, 5024, 6280, 6448, 6656, 7936, 8060, 8164, 8320, 9734, 9920, 10048, 10205, 12560, 12896, 15872, 16120, 16328, 16640, 19468, 19840, 20096, 20410, 24335, 25120, 25792, 32240, 32656, 33280, 38936, 39680, 40192, 40820, 48670, 50240, 51584, 63271, 64480, 65312, 77872, 79360, 80384, 81640, 97340, 100480, 103168, 126542, 128960, 130624, 155744, 163280, 194680, 200960, 206336, 253084, 257920, 261248, 311488, 316355, 326560, 389360, 401920, 506168, 515840, 522496, 622976, 632710, 653120, 778720, 1012336, 1031680, 1044992, 1245952, 1265420, 1306240, 1557440, 2024672, 2491904, 2530840, 2612480, 3114880, 4049344, 5061680, 5224960, 6229760, 8098688, 10123360, 12459520, 16197376, 20246720, 32394752, 40493440, 80986880, 161973760]

約数ペア:

[(1, 161973760), (2, 80986880), (4, 40493440), (5, 32394752), (8, 20246720), (10, 16197376), (13, 12459520), (16, 10123360), (20, 8098688), (26, 6229760), (31, 5224960), (32, 5061680), (40, 4049344), (52, 3114880), (62, 2612480), (64, 2530840), (65, 2491904), (80, 2024672), (104, 1557440), (124, 1306240), (128, 1265420), (130, 1245952), (155, 1044992), (157, 1031680), (160, 1012336), (208, 778720), (248, 653120), (256, 632710), (260, 622976), (310, 522496), (314, 515840), (320, 506168), (403, 401920), (416, 389360), (496, 326560), (512, 316355), (520, 311488), (620, 261248), (628, 257920), (640, 253084), (785, 206336), (806, 200960), (832, 194680), (992, 163280), (1040, 155744), (1240, 130624), (1256, 128960), (1280, 126542), (1570, 103168), (1612, 100480), (1664, 97340), (1984, 81640), (2015, 80384), (2041, 79360), (2080, 77872), (2480, 65312), (2512, 64480), (2560, 63271), (3140, 51584), (3224, 50240), (3328, 48670), (3968, 40820), (4030, 40192), (4082, 39680), (4160, 38936), (4867, 33280), (4960, 32656), (5024, 32240), (6280, 25792), (6448, 25120), (6656, 24335), (7936, 20410), (8060, 20096), (8164, 19840), (8320, 19468), (9734, 16640), (9920, 16328), (10048, 16120), (10205, 15872), (12560, 12896)]