18874880

素因数分解:

$2^9\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 80

約数和(自身を含む): 46329624

約数和(自身を除く): 27454744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 101, 128, 146, 160, 202, 256, 292, 320, 365, 404, 505, 512, 584, 640, 730, 808, 1010, 1168, 1280, 1460, 1616, 2020, 2336, 2560, 2920, 3232, 4040, 4672, 5840, 6464, 7373, 8080, 9344, 11680, 12928, 14746, 16160, 18688, 23360, 25856, 29492, 32320, 36865, 37376, 46720, 51712, 58984, 64640, 73730, 93440, 117968, 129280, 147460, 186880, 235936, 258560, 294920, 471872, 589840, 943744, 1179680, 1887488, 2359360, 3774976, 4718720, 9437440, 18874880]

約数ペア:

[(1, 18874880), (2, 9437440), (4, 4718720), (5, 3774976), (8, 2359360), (10, 1887488), (16, 1179680), (20, 943744), (32, 589840), (40, 471872), (64, 294920), (73, 258560), (80, 235936), (101, 186880), (128, 147460), (146, 129280), (160, 117968), (202, 93440), (256, 73730), (292, 64640), (320, 58984), (365, 51712), (404, 46720), (505, 37376), (512, 36865), (584, 32320), (640, 29492), (730, 25856), (808, 23360), (1010, 18688), (1168, 16160), (1280, 14746), (1460, 12928), (1616, 11680), (2020, 9344), (2336, 8080), (2560, 7373), (2920, 6464), (3232, 5840), (4040, 4672)]