21479280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2934

約数の個数: 80

約数和(自身を含む): 68757504

約数和(自身を除く): 47278224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2887, 3720, 5774, 7440, 8661, 11548, 14435, 17322, 23096, 28870, 34644, 43305, 46192, 57740, 69288, 86610, 89497, 115480, 138576, 173220, 178994, 230960, 268491, 346440, 357988, 447485, 536982, 692880, 715976, 894970, 1073964, 1342455, 1431952, 1789940, 2147928, 2684910, 3579880, 4295856, 5369820, 7159760, 10739640, 21479280]

約数ペア:

[(1, 21479280), (2, 10739640), (3, 7159760), (4, 5369820), (5, 4295856), (6, 3579880), (8, 2684910), (10, 2147928), (12, 1789940), (15, 1431952), (16, 1342455), (20, 1073964), (24, 894970), (30, 715976), (31, 692880), (40, 536982), (48, 447485), (60, 357988), (62, 346440), (80, 268491), (93, 230960), (120, 178994), (124, 173220), (155, 138576), (186, 115480), (240, 89497), (248, 86610), (310, 69288), (372, 57740), (465, 46192), (496, 43305), (620, 34644), (744, 28870), (930, 23096), (1240, 17322), (1488, 14435), (1860, 11548), (2480, 8661), (2887, 7440), (3720, 5774)]