72005440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1$

素因数の和:960

約数の個数: 112

約数和(自身を含む): 194584320

約数和(自身を除く): 122578880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 494, 520, 608, 760, 832, 911, 988, 1040, 1216, 1235, 1520, 1822, 1976, 2080, 2470, 3040, 3644, 3952, 4160, 4555, 4940, 6080, 7288, 7904, 9110, 9880, 11843, 14576, 15808, 17309, 18220, 19760, 23686, 29152, 34618, 36440, 39520, 47372, 58304, 59215, 69236, 72880, 79040, 86545, 94744, 118430, 138472, 145760, 173090, 189488, 225017, 236860, 276944, 291520, 346180, 378976, 450034, 473720, 553888, 692360, 757952, 900068, 947440, 1107776, 1125085, 1384720, 1800136, 1894880, 2250170, 2769440, 3600272, 3789760, 4500340, 5538880, 7200544, 9000680, 14401088, 18001360, 36002720, 72005440]

約数ペア:

[(1, 72005440), (2, 36002720), (4, 18001360), (5, 14401088), (8, 9000680), (10, 7200544), (13, 5538880), (16, 4500340), (19, 3789760), (20, 3600272), (26, 2769440), (32, 2250170), (38, 1894880), (40, 1800136), (52, 1384720), (64, 1125085), (65, 1107776), (76, 947440), (80, 900068), (95, 757952), (104, 692360), (130, 553888), (152, 473720), (160, 450034), (190, 378976), (208, 346180), (247, 291520), (260, 276944), (304, 236860), (320, 225017), (380, 189488), (416, 173090), (494, 145760), (520, 138472), (608, 118430), (760, 94744), (832, 86545), (911, 79040), (988, 72880), (1040, 69236), (1216, 59215), (1235, 58304), (1520, 47372), (1822, 39520), (1976, 36440), (2080, 34618), (2470, 29152), (3040, 23686), (3644, 19760), (3952, 18220), (4160, 17309), (4555, 15808), (4940, 14576), (6080, 11843), (7288, 9880), (7904, 9110)]