81596040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 253912320

約数和(自身を除く): 172316280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 71, 120, 122, 142, 157, 183, 213, 244, 284, 305, 314, 355, 366, 426, 471, 488, 568, 610, 628, 710, 732, 785, 852, 915, 942, 1065, 1220, 1256, 1420, 1464, 1570, 1704, 1830, 1884, 2130, 2355, 2440, 2840, 3140, 3660, 3768, 4260, 4331, 4710, 6280, 7320, 8520, 8662, 9420, 9577, 11147, 12993, 17324, 18840, 19154, 21655, 22294, 25986, 28731, 33441, 34648, 38308, 43310, 44588, 47885, 51972, 55735, 57462, 64965, 66882, 76616, 86620, 89176, 95770, 103944, 111470, 114924, 129930, 133764, 143655, 167205, 173240, 191540, 222940, 229848, 259860, 267528, 287310, 334410, 383080, 445880, 519720, 574620, 668820, 679967, 1149240, 1337640, 1359934, 2039901, 2719868, 3399835, 4079802, 5439736, 6799670, 8159604, 10199505, 13599340, 16319208, 20399010, 27198680, 40798020, 81596040]

約数ペア:

[(1, 81596040), (2, 40798020), (3, 27198680), (4, 20399010), (5, 16319208), (6, 13599340), (8, 10199505), (10, 8159604), (12, 6799670), (15, 5439736), (20, 4079802), (24, 3399835), (30, 2719868), (40, 2039901), (60, 1359934), (61, 1337640), (71, 1149240), (120, 679967), (122, 668820), (142, 574620), (157, 519720), (183, 445880), (213, 383080), (244, 334410), (284, 287310), (305, 267528), (314, 259860), (355, 229848), (366, 222940), (426, 191540), (471, 173240), (488, 167205), (568, 143655), (610, 133764), (628, 129930), (710, 114924), (732, 111470), (785, 103944), (852, 95770), (915, 89176), (942, 86620), (1065, 76616), (1220, 66882), (1256, 64965), (1420, 57462), (1464, 55735), (1570, 51972), (1704, 47885), (1830, 44588), (1884, 43310), (2130, 38308), (2355, 34648), (2440, 33441), (2840, 28731), (3140, 25986), (3660, 22294), (3768, 21655), (4260, 19154), (4331, 18840), (4710, 17324), (6280, 12993), (7320, 11147), (8520, 9577), (8662, 9420)]