1621688320

素因数分解:

$2^{16}\times 5^1\times 7^2\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 204

約数和(自身を含む): 4572280764

約数和(自身を除く): 2950592444

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 101, 112, 128, 140, 160, 196, 202, 224, 245, 256, 280, 320, 392, 404, 448, 490, 505, 512, 560, 640, 707, 784, 808, 896, 980, 1010, 1024, 1120, 1280, 1414, 1568, 1616, 1792, 1960, 2020, 2048, 2240, 2560, 2828, 3136, 3232, 3535, 3584, 3920, 4040, 4096, 4480, 4949, 5120, 5656, 6272, 6464, 7070, 7168, 7840, 8080, 8192, 8960, 9898, 10240, 11312, 12544, 12928, 14140, 14336, 15680, 16160, 16384, 17920, 19796, 20480, 22624, 24745, 25088, 25856, 28280, 28672, 31360, 32320, 32768, 35840, 39592, 40960, 45248, 49490, 50176, 51712, 56560, 57344, 62720, 64640, 65536, 71680, 79184, 81920, 90496, 98980, 100352, 103424, 113120, 114688, 125440, 129280, 143360, 158368, 163840, 180992, 197960, 200704, 206848, 226240, 229376, 250880, 258560, 286720, 316736, 327680, 361984, 395920, 401408, 413696, 452480, 458752, 501760, 517120, 573440, 633472, 723968, 791840, 802816, 827392, 904960, 1003520, 1034240, 1146880, 1266944, 1447936, 1583680, 1605632, 1654784, 1809920, 2007040, 2068480, 2293760, 2533888, 2895872, 3167360, 3211264, 3309568, 3619840, 4014080, 4136960, 5067776, 5791744, 6334720, 6619136, 7239680, 8028160, 8273920, 10135552, 11583488, 12669440, 14479360, 16056320, 16547840, 20271104, 23166976, 25338880, 28958720, 33095680, 40542208, 46333952, 50677760, 57917440, 81084416, 101355520, 115834880, 162168832, 202711040, 231669760, 324337664, 405422080, 810844160, 1621688320]

約数ペア:

[(1, 1621688320), (2, 810844160), (4, 405422080), (5, 324337664), (7, 231669760), (8, 202711040), (10, 162168832), (14, 115834880), (16, 101355520), (20, 81084416), (28, 57917440), (32, 50677760), (35, 46333952), (40, 40542208), (49, 33095680), (56, 28958720), (64, 25338880), (70, 23166976), (80, 20271104), (98, 16547840), (101, 16056320), (112, 14479360), (128, 12669440), (140, 11583488), (160, 10135552), (196, 8273920), (202, 8028160), (224, 7239680), (245, 6619136), (256, 6334720), (280, 5791744), (320, 5067776), (392, 4136960), (404, 4014080), (448, 3619840), (490, 3309568), (505, 3211264), (512, 3167360), (560, 2895872), (640, 2533888), (707, 2293760), (784, 2068480), (808, 2007040), (896, 1809920), (980, 1654784), (1010, 1605632), (1024, 1583680), (1120, 1447936), (1280, 1266944), (1414, 1146880), (1568, 1034240), (1616, 1003520), (1792, 904960), (1960, 827392), (2020, 802816), (2048, 791840), (2240, 723968), (2560, 633472), (2828, 573440), (3136, 517120), (3232, 501760), (3535, 458752), (3584, 452480), (3920, 413696), (4040, 401408), (4096, 395920), (4480, 361984), (4949, 327680), (5120, 316736), (5656, 286720), (6272, 258560), (6464, 250880), (7070, 229376), (7168, 226240), (7840, 206848), (8080, 200704), (8192, 197960), (8960, 180992), (9898, 163840), (10240, 158368), (11312, 143360), (12544, 129280), (12928, 125440), (14140, 114688), (14336, 113120), (15680, 103424), (16160, 100352), (16384, 98980), (17920, 90496), (19796, 81920), (20480, 79184), (22624, 71680), (24745, 65536), (25088, 64640), (25856, 62720), (28280, 57344), (28672, 56560), (31360, 51712), (32320, 50176), (32768, 49490), (35840, 45248), (39592, 40960)]