12641640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 42318720

約数和(自身を除く): 29677080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 157, 165, 183, 220, 244, 264, 305, 314, 330, 366, 440, 471, 488, 610, 628, 660, 671, 732, 785, 915, 942, 1220, 1256, 1320, 1342, 1464, 1570, 1727, 1830, 1884, 2013, 2355, 2440, 2684, 3140, 3355, 3454, 3660, 3768, 4026, 4710, 5181, 5368, 6280, 6710, 6908, 7320, 8052, 8635, 9420, 9577, 10065, 10362, 13420, 13816, 16104, 17270, 18840, 19154, 20130, 20724, 25905, 26840, 28731, 34540, 38308, 40260, 41448, 47885, 51810, 57462, 69080, 76616, 80520, 95770, 103620, 105347, 114924, 143655, 191540, 207240, 210694, 229848, 287310, 316041, 383080, 421388, 526735, 574620, 632082, 842776, 1053470, 1149240, 1264164, 1580205, 2106940, 2528328, 3160410, 4213880, 6320820, 12641640]

約数ペア:

[(1, 12641640), (2, 6320820), (3, 4213880), (4, 3160410), (5, 2528328), (6, 2106940), (8, 1580205), (10, 1264164), (11, 1149240), (12, 1053470), (15, 842776), (20, 632082), (22, 574620), (24, 526735), (30, 421388), (33, 383080), (40, 316041), (44, 287310), (55, 229848), (60, 210694), (61, 207240), (66, 191540), (88, 143655), (110, 114924), (120, 105347), (122, 103620), (132, 95770), (157, 80520), (165, 76616), (183, 69080), (220, 57462), (244, 51810), (264, 47885), (305, 41448), (314, 40260), (330, 38308), (366, 34540), (440, 28731), (471, 26840), (488, 25905), (610, 20724), (628, 20130), (660, 19154), (671, 18840), (732, 17270), (785, 16104), (915, 13816), (942, 13420), (1220, 10362), (1256, 10065), (1320, 9577), (1342, 9420), (1464, 8635), (1570, 8052), (1727, 7320), (1830, 6908), (1884, 6710), (2013, 6280), (2355, 5368), (2440, 5181), (2684, 4710), (3140, 4026), (3355, 3768), (3454, 3660)]