331425280

素因数分解:

$2^9\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3499}}^1$

素因数の和:3559

約数の個数: 80

約数和(自身を含む): 816354000

約数和(自身を除く): 484928720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 512, 592, 640, 740, 1184, 1280, 1480, 2368, 2560, 2960, 3499, 4736, 5920, 6998, 9472, 11840, 13996, 17495, 18944, 23680, 27992, 34990, 47360, 55984, 69980, 94720, 111968, 129463, 139960, 223936, 258926, 279920, 447872, 517852, 559840, 647315, 895744, 1035704, 1119680, 1294630, 1791488, 2071408, 2239360, 2589260, 4142816, 4478720, 5178520, 8285632, 8957440, 10357040, 16571264, 20714080, 33142528, 41428160, 66285056, 82856320, 165712640, 331425280]

約数ペア:

[(1, 331425280), (2, 165712640), (4, 82856320), (5, 66285056), (8, 41428160), (10, 33142528), (16, 20714080), (20, 16571264), (32, 10357040), (37, 8957440), (40, 8285632), (64, 5178520), (74, 4478720), (80, 4142816), (128, 2589260), (148, 2239360), (160, 2071408), (185, 1791488), (256, 1294630), (296, 1119680), (320, 1035704), (370, 895744), (512, 647315), (592, 559840), (640, 517852), (740, 447872), (1184, 279920), (1280, 258926), (1480, 223936), (2368, 139960), (2560, 129463), (2960, 111968), (3499, 94720), (4736, 69980), (5920, 55984), (6998, 47360), (9472, 34990), (11840, 27992), (13996, 23680), (17495, 18944)]