219887960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{463}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 513146880

約数和(自身を除く): 293258920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 383, 463, 620, 766, 926, 1240, 1532, 1852, 1915, 2315, 3064, 3704, 3830, 4630, 7660, 9260, 11873, 14353, 15320, 18520, 23746, 28706, 47492, 57412, 59365, 71765, 94984, 114824, 118730, 143530, 177329, 237460, 287060, 354658, 474920, 574120, 709316, 886645, 1418632, 1773290, 3546580, 5497199, 7093160, 10994398, 21988796, 27485995, 43977592, 54971990, 109943980, 219887960]

約数ペア:

[(1, 219887960), (2, 109943980), (4, 54971990), (5, 43977592), (8, 27485995), (10, 21988796), (20, 10994398), (31, 7093160), (40, 5497199), (62, 3546580), (124, 1773290), (155, 1418632), (248, 886645), (310, 709316), (383, 574120), (463, 474920), (620, 354658), (766, 287060), (926, 237460), (1240, 177329), (1532, 143530), (1852, 118730), (1915, 114824), (2315, 94984), (3064, 71765), (3704, 59365), (3830, 57412), (4630, 47492), (7660, 28706), (9260, 23746), (11873, 18520), (14353, 15320)]