84728890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 165473280

約数和(自身を除く): 80744390

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 83, 89, 155, 166, 178, 185, 310, 370, 415, 445, 830, 890, 1147, 2294, 2573, 2759, 3071, 3293, 5146, 5518, 5735, 6142, 6586, 7387, 11470, 12865, 13795, 14774, 15355, 16465, 25730, 27590, 30710, 32930, 36935, 73870, 95201, 102083, 190402, 204166, 228997, 273319, 457994, 476005, 510415, 546638, 952010, 1020830, 1144985, 1366595, 2289970, 2733190, 8472889, 16945778, 42364445, 84728890]

約数ペア:

[(1, 84728890), (2, 42364445), (5, 16945778), (10, 8472889), (31, 2733190), (37, 2289970), (62, 1366595), (74, 1144985), (83, 1020830), (89, 952010), (155, 546638), (166, 510415), (178, 476005), (185, 457994), (310, 273319), (370, 228997), (415, 204166), (445, 190402), (830, 102083), (890, 95201), (1147, 73870), (2294, 36935), (2573, 32930), (2759, 30710), (3071, 27590), (3293, 25730), (5146, 16465), (5518, 15355), (5735, 14774), (6142, 13795), (6586, 12865), (7387, 11470)]