678720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1$

素因数の和:128

約数の個数: 112

約数和(自身を含む): 2487168

約数和(自身を除く): 1808448

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 101, 105, 112, 120, 140, 160, 168, 192, 202, 210, 224, 240, 280, 303, 320, 336, 404, 420, 448, 480, 505, 560, 606, 672, 707, 808, 840, 960, 1010, 1120, 1212, 1344, 1414, 1515, 1616, 1680, 2020, 2121, 2240, 2424, 2828, 3030, 3232, 3360, 3535, 4040, 4242, 4848, 5656, 6060, 6464, 6720, 7070, 8080, 8484, 9696, 10605, 11312, 12120, 14140, 16160, 16968, 19392, 21210, 22624, 24240, 28280, 32320, 33936, 42420, 45248, 48480, 56560, 67872, 84840, 96960, 113120, 135744, 169680, 226240, 339360, 678720]

約数ペア:

[(1, 678720), (2, 339360), (3, 226240), (4, 169680), (5, 135744), (6, 113120), (7, 96960), (8, 84840), (10, 67872), (12, 56560), (14, 48480), (15, 45248), (16, 42420), (20, 33936), (21, 32320), (24, 28280), (28, 24240), (30, 22624), (32, 21210), (35, 19392), (40, 16968), (42, 16160), (48, 14140), (56, 12120), (60, 11312), (64, 10605), (70, 9696), (80, 8484), (84, 8080), (96, 7070), (101, 6720), (105, 6464), (112, 6060), (120, 5656), (140, 4848), (160, 4242), (168, 4040), (192, 3535), (202, 3360), (210, 3232), (224, 3030), (240, 2828), (280, 2424), (303, 2240), (320, 2121), (336, 2020), (404, 1680), (420, 1616), (448, 1515), (480, 1414), (505, 1344), (560, 1212), (606, 1120), (672, 1010), (707, 960), (808, 840)]