77682280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 199987200

約数和(自身を除く): 122304920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 61, 62, 65, 79, 104, 122, 124, 130, 155, 158, 244, 248, 260, 305, 310, 316, 395, 403, 488, 520, 610, 620, 632, 790, 793, 806, 1027, 1220, 1240, 1580, 1586, 1612, 1891, 2015, 2054, 2440, 2449, 3160, 3172, 3224, 3782, 3965, 4030, 4108, 4819, 4898, 5135, 6344, 7564, 7930, 8060, 8216, 9455, 9638, 9796, 10270, 12245, 15128, 15860, 16120, 18910, 19276, 19592, 20540, 24095, 24490, 24583, 31720, 31837, 37820, 38552, 41080, 48190, 48980, 49166, 62647, 63674, 75640, 96380, 97960, 98332, 122915, 125294, 127348, 149389, 159185, 192760, 196664, 245830, 250588, 254696, 298778, 313235, 318370, 491660, 501176, 597556, 626470, 636740, 746945, 983320, 1195112, 1252940, 1273480, 1493890, 1942057, 2505880, 2987780, 3884114, 5975560, 7768228, 9710285, 15536456, 19420570, 38841140, 77682280]

約数ペア:

[(1, 77682280), (2, 38841140), (4, 19420570), (5, 15536456), (8, 9710285), (10, 7768228), (13, 5975560), (20, 3884114), (26, 2987780), (31, 2505880), (40, 1942057), (52, 1493890), (61, 1273480), (62, 1252940), (65, 1195112), (79, 983320), (104, 746945), (122, 636740), (124, 626470), (130, 597556), (155, 501176), (158, 491660), (244, 318370), (248, 313235), (260, 298778), (305, 254696), (310, 250588), (316, 245830), (395, 196664), (403, 192760), (488, 159185), (520, 149389), (610, 127348), (620, 125294), (632, 122915), (790, 98332), (793, 97960), (806, 96380), (1027, 75640), (1220, 63674), (1240, 62647), (1580, 49166), (1586, 48980), (1612, 48190), (1891, 41080), (2015, 38552), (2054, 37820), (2440, 31837), (2449, 31720), (3160, 24583), (3172, 24490), (3224, 24095), (3782, 20540), (3965, 19592), (4030, 19276), (4108, 18910), (4819, 16120), (4898, 15860), (5135, 15128), (6344, 12245), (7564, 10270), (7930, 9796), (8060, 9638), (8216, 9455)]