381029120

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2731}}^1$

素因数の和:2861

約数の個数: 72

約数和(自身を含む): 921394320

約数和(自身を除く): 540365200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 872, 1090, 1280, 1744, 2180, 2731, 3488, 4360, 5462, 6976, 8720, 10924, 13655, 13952, 17440, 21848, 27310, 27904, 34880, 43696, 54620, 69760, 87392, 109240, 139520, 174784, 218480, 297679, 349568, 436960, 595358, 699136, 873920, 1190716, 1488395, 1747840, 2381432, 2976790, 3495680, 4762864, 5953580, 9525728, 11907160, 19051456, 23814320, 38102912, 47628640, 76205824, 95257280, 190514560, 381029120]

約数ペア:

[(1, 381029120), (2, 190514560), (4, 95257280), (5, 76205824), (8, 47628640), (10, 38102912), (16, 23814320), (20, 19051456), (32, 11907160), (40, 9525728), (64, 5953580), (80, 4762864), (109, 3495680), (128, 2976790), (160, 2381432), (218, 1747840), (256, 1488395), (320, 1190716), (436, 873920), (545, 699136), (640, 595358), (872, 436960), (1090, 349568), (1280, 297679), (1744, 218480), (2180, 174784), (2731, 139520), (3488, 109240), (4360, 87392), (5462, 69760), (6976, 54620), (8720, 43696), (10924, 34880), (13655, 27904), (13952, 27310), (17440, 21848)]