8310640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 21311136

約数和(自身を除く): 13000496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 131, 208, 244, 260, 262, 305, 488, 520, 524, 610, 655, 793, 976, 1040, 1048, 1220, 1310, 1586, 1703, 2096, 2440, 2620, 3172, 3406, 3965, 4880, 5240, 6344, 6812, 7930, 7991, 8515, 10480, 12688, 13624, 15860, 15982, 17030, 27248, 31720, 31964, 34060, 39955, 63440, 63928, 68120, 79910, 103883, 127856, 136240, 159820, 207766, 319640, 415532, 519415, 639280, 831064, 1038830, 1662128, 2077660, 4155320, 8310640]

約数ペア:

[(1, 8310640), (2, 4155320), (4, 2077660), (5, 1662128), (8, 1038830), (10, 831064), (13, 639280), (16, 519415), (20, 415532), (26, 319640), (40, 207766), (52, 159820), (61, 136240), (65, 127856), (80, 103883), (104, 79910), (122, 68120), (130, 63928), (131, 63440), (208, 39955), (244, 34060), (260, 31964), (262, 31720), (305, 27248), (488, 17030), (520, 15982), (524, 15860), (610, 13624), (655, 12688), (793, 10480), (976, 8515), (1040, 7991), (1048, 7930), (1220, 6812), (1310, 6344), (1586, 5240), (1703, 4880), (2096, 3965), (2440, 3406), (2620, 3172)]