644045256

素因数分解:

$2^3\times 3^7\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 1831420800

約数和(自身を除く): 1187375544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 131, 162, 216, 243, 262, 281, 324, 393, 486, 524, 562, 648, 729, 786, 843, 972, 1048, 1124, 1179, 1458, 1572, 1686, 1944, 2187, 2248, 2358, 2529, 2916, 3144, 3372, 3537, 4374, 4716, 5058, 5832, 6744, 7074, 7587, 8748, 9432, 10116, 10611, 14148, 15174, 17496, 20232, 21222, 22761, 28296, 30348, 31833, 36811, 42444, 45522, 60696, 63666, 68283, 73622, 84888, 91044, 95499, 110433, 127332, 136566, 147244, 182088, 190998, 204849, 220866, 254664, 273132, 286497, 294488, 331299, 381996, 409698, 441732, 546264, 572994, 614547, 662598, 763992, 819396, 883464, 993897, 1145988, 1229094, 1325196, 1638792, 1987794, 2291976, 2458188, 2650392, 2981691, 3975588, 4916376, 5963382, 7951176, 8945073, 11926764, 17890146, 23853528, 26835219, 35780292, 53670438, 71560584, 80505657, 107340876, 161011314, 214681752, 322022628, 644045256]

約数ペア:

[(1, 644045256), (2, 322022628), (3, 214681752), (4, 161011314), (6, 107340876), (8, 80505657), (9, 71560584), (12, 53670438), (18, 35780292), (24, 26835219), (27, 23853528), (36, 17890146), (54, 11926764), (72, 8945073), (81, 7951176), (108, 5963382), (131, 4916376), (162, 3975588), (216, 2981691), (243, 2650392), (262, 2458188), (281, 2291976), (324, 1987794), (393, 1638792), (486, 1325196), (524, 1229094), (562, 1145988), (648, 993897), (729, 883464), (786, 819396), (843, 763992), (972, 662598), (1048, 614547), (1124, 572994), (1179, 546264), (1458, 441732), (1572, 409698), (1686, 381996), (1944, 331299), (2187, 294488), (2248, 286497), (2358, 273132), (2529, 254664), (2916, 220866), (3144, 204849), (3372, 190998), (3537, 182088), (4374, 147244), (4716, 136566), (5058, 127332), (5832, 110433), (6744, 95499), (7074, 91044), (7587, 84888), (8748, 73622), (9432, 68283), (10116, 63666), (10611, 60696), (14148, 45522), (15174, 42444), (17496, 36811), (20232, 31833), (21222, 30348), (22761, 28296)]