20181551325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1\times {\mathrm{547}}^1$

素因数の和:1131

約数の個数: 96

約数和(自身を含む): 36530995200

約数和(自身を除く): 16349443875

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 79, 195, 237, 325, 395, 479, 547, 975, 1027, 1185, 1437, 1641, 1975, 2395, 2735, 3081, 5135, 5925, 6227, 7111, 7185, 8205, 11975, 13675, 15405, 18681, 21333, 25675, 31135, 35555, 35925, 37841, 41025, 43213, 77025, 93405, 106665, 113523, 129639, 155675, 177775, 189205, 216065, 262013, 467025, 491933, 533325, 561769, 567615, 648195, 786039, 946025, 1080325, 1310065, 1475799, 1685307, 2459665, 2808845, 2838075, 3240975, 3406169, 3930195, 6550325, 7378995, 8426535, 10218507, 12298325, 14044225, 17030845, 19650975, 20699027, 36894975, 42132675, 51092535, 62097081, 85154225, 103495135, 255462675, 269087351, 310485405, 517475675, 807262053, 1345436755, 1552427025, 4036310265, 6727183775, 20181551325]

約数ペア:

[(1, 20181551325), (3, 6727183775), (5, 4036310265), (13, 1552427025), (15, 1345436755), (25, 807262053), (39, 517475675), (65, 310485405), (75, 269087351), (79, 255462675), (195, 103495135), (237, 85154225), (325, 62097081), (395, 51092535), (479, 42132675), (547, 36894975), (975, 20699027), (1027, 19650975), (1185, 17030845), (1437, 14044225), (1641, 12298325), (1975, 10218507), (2395, 8426535), (2735, 7378995), (3081, 6550325), (5135, 3930195), (5925, 3406169), (6227, 3240975), (7111, 2838075), (7185, 2808845), (8205, 2459665), (11975, 1685307), (13675, 1475799), (15405, 1310065), (18681, 1080325), (21333, 946025), (25675, 786039), (31135, 648195), (35555, 567615), (35925, 561769), (37841, 533325), (41025, 491933), (43213, 467025), (77025, 262013), (93405, 216065), (106665, 189205), (113523, 177775), (129639, 155675)]