81602720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1630

約数の個数: 96

約数和(自身を含む): 215006400

約数和(自身を除く): 133403680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 160, 170, 190, 272, 304, 323, 340, 380, 544, 608, 646, 680, 760, 1292, 1360, 1520, 1579, 1615, 2584, 2720, 3040, 3158, 3230, 5168, 6316, 6460, 7895, 10336, 12632, 12920, 15790, 25264, 25840, 26843, 30001, 31580, 50528, 51680, 53686, 60002, 63160, 107372, 120004, 126320, 134215, 150005, 214744, 240008, 252640, 268430, 300010, 429488, 480016, 510017, 536860, 600020, 858976, 960032, 1020034, 1073720, 1200040, 2040068, 2147440, 2400080, 2550085, 4080136, 4294880, 4800160, 5100170, 8160272, 10200340, 16320544, 20400680, 40801360, 81602720]

約数ペア:

[(1, 81602720), (2, 40801360), (4, 20400680), (5, 16320544), (8, 10200340), (10, 8160272), (16, 5100170), (17, 4800160), (19, 4294880), (20, 4080136), (32, 2550085), (34, 2400080), (38, 2147440), (40, 2040068), (68, 1200040), (76, 1073720), (80, 1020034), (85, 960032), (95, 858976), (136, 600020), (152, 536860), (160, 510017), (170, 480016), (190, 429488), (272, 300010), (304, 268430), (323, 252640), (340, 240008), (380, 214744), (544, 150005), (608, 134215), (646, 126320), (680, 120004), (760, 107372), (1292, 63160), (1360, 60002), (1520, 53686), (1579, 51680), (1615, 50528), (2584, 31580), (2720, 30001), (3040, 26843), (3158, 25840), (3230, 25264), (5168, 15790), (6316, 12920), (6460, 12632), (7895, 10336)]