64407460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 153990144

約数和(自身を除く): 89582684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 61, 62, 65, 122, 124, 130, 131, 155, 244, 260, 262, 305, 310, 403, 524, 610, 620, 655, 793, 806, 1220, 1310, 1586, 1612, 1703, 1891, 2015, 2620, 3172, 3406, 3782, 3965, 4030, 4061, 6812, 7564, 7930, 7991, 8060, 8122, 8515, 9455, 15860, 15982, 16244, 17030, 18910, 20305, 24583, 31964, 34060, 37820, 39955, 40610, 49166, 52793, 79910, 81220, 98332, 103883, 105586, 122915, 159820, 207766, 211172, 245830, 247721, 263965, 415532, 491660, 495442, 519415, 527930, 990884, 1038830, 1055860, 1238605, 2077660, 2477210, 3220373, 4954420, 6440746, 12881492, 16101865, 32203730, 64407460]

約数ペア:

[(1, 64407460), (2, 32203730), (4, 16101865), (5, 12881492), (10, 6440746), (13, 4954420), (20, 3220373), (26, 2477210), (31, 2077660), (52, 1238605), (61, 1055860), (62, 1038830), (65, 990884), (122, 527930), (124, 519415), (130, 495442), (131, 491660), (155, 415532), (244, 263965), (260, 247721), (262, 245830), (305, 211172), (310, 207766), (403, 159820), (524, 122915), (610, 105586), (620, 103883), (655, 98332), (793, 81220), (806, 79910), (1220, 52793), (1310, 49166), (1586, 40610), (1612, 39955), (1703, 37820), (1891, 34060), (2015, 31964), (2620, 24583), (3172, 20305), (3406, 18910), (3782, 17030), (3965, 16244), (4030, 15982), (4061, 15860), (6812, 9455), (7564, 8515), (7930, 8122), (7991, 8060)]