18889448240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{5801}}^1$

素因数の和:5959

約数の個数: 160

約数和(自身を含む): 49313843712

約数和(自身を除く): 30424395472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 101, 104, 124, 130, 155, 202, 208, 248, 260, 310, 403, 404, 496, 505, 520, 620, 806, 808, 1010, 1040, 1240, 1313, 1612, 1616, 2015, 2020, 2480, 2626, 3131, 3224, 4030, 4040, 5252, 5801, 6262, 6448, 6565, 8060, 8080, 10504, 11602, 12524, 13130, 15655, 16120, 21008, 23204, 25048, 26260, 29005, 31310, 32240, 40703, 46408, 50096, 52520, 58010, 62620, 75413, 81406, 92816, 105040, 116020, 125240, 150826, 162812, 179831, 203515, 232040, 250480, 301652, 325624, 359662, 377065, 407030, 464080, 585901, 603304, 651248, 719324, 754130, 814060, 899155, 1171802, 1206608, 1438648, 1508260, 1628120, 1798310, 2337803, 2343604, 2877296, 2929505, 3016520, 3256240, 3596620, 4675606, 4687208, 5859010, 6033040, 7193240, 7616713, 9351212, 9374416, 11689015, 11718020, 14386480, 15233426, 18162931, 18702424, 23378030, 23436040, 30466852, 36325862, 37404848, 38083565, 46756060, 46872080, 60933704, 72651724, 76167130, 90814655, 93512120, 121867408, 145303448, 152334260, 181629310, 187024240, 236118103, 290606896, 304668520, 363258620, 472236206, 609337040, 726517240, 944472412, 1180590515, 1453034480, 1888944824, 2361181030, 3777889648, 4722362060, 9444724120, 18889448240]

約数ペア:

[(1, 18889448240), (2, 9444724120), (4, 4722362060), (5, 3777889648), (8, 2361181030), (10, 1888944824), (13, 1453034480), (16, 1180590515), (20, 944472412), (26, 726517240), (31, 609337040), (40, 472236206), (52, 363258620), (62, 304668520), (65, 290606896), (80, 236118103), (101, 187024240), (104, 181629310), (124, 152334260), (130, 145303448), (155, 121867408), (202, 93512120), (208, 90814655), (248, 76167130), (260, 72651724), (310, 60933704), (403, 46872080), (404, 46756060), (496, 38083565), (505, 37404848), (520, 36325862), (620, 30466852), (806, 23436040), (808, 23378030), (1010, 18702424), (1040, 18162931), (1240, 15233426), (1313, 14386480), (1612, 11718020), (1616, 11689015), (2015, 9374416), (2020, 9351212), (2480, 7616713), (2626, 7193240), (3131, 6033040), (3224, 5859010), (4030, 4687208), (4040, 4675606), (5252, 3596620), (5801, 3256240), (6262, 3016520), (6448, 2929505), (6565, 2877296), (8060, 2343604), (8080, 2337803), (10504, 1798310), (11602, 1628120), (12524, 1508260), (13130, 1438648), (15655, 1206608), (16120, 1171802), (21008, 899155), (23204, 814060), (25048, 754130), (26260, 719324), (29005, 651248), (31310, 603304), (32240, 585901), (40703, 464080), (46408, 407030), (50096, 377065), (52520, 359662), (58010, 325624), (62620, 301652), (75413, 250480), (81406, 232040), (92816, 203515), (105040, 179831), (116020, 162812), (125240, 150826)]