491585280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:746

約数の個数: 144

約数和(自身を含む): 1578867360

約数和(自身を除く): 1087282080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 313, 320, 384, 409, 480, 626, 640, 768, 818, 939, 960, 1227, 1252, 1280, 1565, 1636, 1878, 1920, 2045, 2454, 2504, 3130, 3272, 3756, 3840, 4090, 4695, 4908, 5008, 6135, 6260, 6544, 7512, 8180, 9390, 9816, 10016, 12270, 12520, 13088, 15024, 16360, 18780, 19632, 20032, 24540, 25040, 26176, 30048, 32720, 37560, 39264, 40064, 49080, 50080, 52352, 60096, 65440, 75120, 78528, 80128, 98160, 100160, 104704, 120192, 128017, 130880, 150240, 157056, 196320, 200320, 240384, 256034, 261760, 300480, 314112, 384051, 392640, 400640, 512068, 523520, 600960, 640085, 768102, 785280, 1024136, 1201920, 1280170, 1536204, 1570560, 1920255, 2048272, 2560340, 3072408, 3840510, 4096544, 5120680, 6144816, 7681020, 8193088, 10241360, 12289632, 15362040, 16386176, 20482720, 24579264, 30724080, 32772352, 40965440, 49158528, 61448160, 81930880, 98317056, 122896320, 163861760, 245792640, 491585280]

約数ペア:

[(1, 491585280), (2, 245792640), (3, 163861760), (4, 122896320), (5, 98317056), (6, 81930880), (8, 61448160), (10, 49158528), (12, 40965440), (15, 32772352), (16, 30724080), (20, 24579264), (24, 20482720), (30, 16386176), (32, 15362040), (40, 12289632), (48, 10241360), (60, 8193088), (64, 7681020), (80, 6144816), (96, 5120680), (120, 4096544), (128, 3840510), (160, 3072408), (192, 2560340), (240, 2048272), (256, 1920255), (313, 1570560), (320, 1536204), (384, 1280170), (409, 1201920), (480, 1024136), (626, 785280), (640, 768102), (768, 640085), (818, 600960), (939, 523520), (960, 512068), (1227, 400640), (1252, 392640), (1280, 384051), (1565, 314112), (1636, 300480), (1878, 261760), (1920, 256034), (2045, 240384), (2454, 200320), (2504, 196320), (3130, 157056), (3272, 150240), (3756, 130880), (3840, 128017), (4090, 120192), (4695, 104704), (4908, 100160), (5008, 98160), (6135, 80128), (6260, 78528), (6544, 75120), (7512, 65440), (8180, 60096), (9390, 52352), (9816, 50080), (10016, 49080), (12270, 40064), (12520, 39264), (13088, 37560), (15024, 32720), (16360, 30048), (18780, 26176), (19632, 25040), (20032, 24540)]