1721617040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{13681}}^1$

素因数の和:13729

約数の個数: 120

約数和(自身を含む): 4738514424

約数和(自身を除く): 3016897384

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 121, 130, 143, 176, 208, 220, 242, 260, 286, 440, 484, 520, 572, 605, 715, 880, 968, 1040, 1144, 1210, 1430, 1573, 1936, 2288, 2420, 2860, 3146, 4840, 5720, 6292, 7865, 9680, 11440, 12584, 13681, 15730, 25168, 27362, 31460, 54724, 62920, 68405, 109448, 125840, 136810, 150491, 177853, 218896, 273620, 300982, 355706, 547240, 601964, 711412, 752455, 889265, 1094480, 1203928, 1422824, 1504910, 1655401, 1778530, 1956383, 2407856, 2845648, 3009820, 3310802, 3557060, 3912766, 6019640, 6621604, 7114120, 7825532, 8277005, 9781915, 12039280, 13243208, 14228240, 15651064, 16554010, 19563830, 21520213, 26486416, 31302128, 33108020, 39127660, 43040426, 66216040, 78255320, 86080852, 107601065, 132432080, 156510640, 172161704, 215202130, 344323408, 430404260, 860808520, 1721617040]

約数ペア:

[(1, 1721617040), (2, 860808520), (4, 430404260), (5, 344323408), (8, 215202130), (10, 172161704), (11, 156510640), (13, 132432080), (16, 107601065), (20, 86080852), (22, 78255320), (26, 66216040), (40, 43040426), (44, 39127660), (52, 33108020), (55, 31302128), (65, 26486416), (80, 21520213), (88, 19563830), (104, 16554010), (110, 15651064), (121, 14228240), (130, 13243208), (143, 12039280), (176, 9781915), (208, 8277005), (220, 7825532), (242, 7114120), (260, 6621604), (286, 6019640), (440, 3912766), (484, 3557060), (520, 3310802), (572, 3009820), (605, 2845648), (715, 2407856), (880, 1956383), (968, 1778530), (1040, 1655401), (1144, 1504910), (1210, 1422824), (1430, 1203928), (1573, 1094480), (1936, 889265), (2288, 752455), (2420, 711412), (2860, 601964), (3146, 547240), (4840, 355706), (5720, 300982), (6292, 273620), (7865, 218896), (9680, 177853), (11440, 150491), (12584, 136810), (13681, 125840), (15730, 109448), (25168, 68405), (27362, 62920), (31460, 54724)]