15721496960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1889603}}^1$

素因数の和:1889635

約数の個数: 64

約数和(自身を含む): 40475317680

約数和(自身を除く): 24753820720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 1889603, 3779206, 7558412, 9448015, 15116824, 18896030, 24564839, 30233648, 37792060, 49129678, 60467296, 75584120, 98259356, 120934592, 122824195, 151168240, 196518712, 241869184, 245648390, 302336480, 393037424, 491296780, 604672960, 786074848, 982593560, 1209345920, 1572149696, 1965187120, 3144299392, 3930374240, 7860748480, 15721496960]

約数ペア:

[(1, 15721496960), (2, 7860748480), (4, 3930374240), (5, 3144299392), (8, 1965187120), (10, 1572149696), (13, 1209345920), (16, 982593560), (20, 786074848), (26, 604672960), (32, 491296780), (40, 393037424), (52, 302336480), (64, 245648390), (65, 241869184), (80, 196518712), (104, 151168240), (128, 122824195), (130, 120934592), (160, 98259356), (208, 75584120), (260, 60467296), (320, 49129678), (416, 37792060), (520, 30233648), (640, 24564839), (832, 18896030), (1040, 15116824), (1664, 9448015), (2080, 7558412), (4160, 3779206), (8320, 1889603)]