78987520

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2683}}^1$

素因数の和:2727

約数の個数: 72

約数和(自身を含む): 197499456

約数和(自身を除く): 118511936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 920, 1280, 1472, 1840, 2683, 2944, 3680, 5366, 5888, 7360, 10732, 13415, 14720, 21464, 26830, 29440, 42928, 53660, 61709, 85856, 107320, 123418, 171712, 214640, 246836, 308545, 343424, 429280, 493672, 617090, 686848, 858560, 987344, 1234180, 1717120, 1974688, 2468360, 3434240, 3949376, 4936720, 7898752, 9873440, 15797504, 19746880, 39493760, 78987520]

約数ペア:

[(1, 78987520), (2, 39493760), (4, 19746880), (5, 15797504), (8, 9873440), (10, 7898752), (16, 4936720), (20, 3949376), (23, 3434240), (32, 2468360), (40, 1974688), (46, 1717120), (64, 1234180), (80, 987344), (92, 858560), (115, 686848), (128, 617090), (160, 493672), (184, 429280), (230, 343424), (256, 308545), (320, 246836), (368, 214640), (460, 171712), (640, 123418), (736, 107320), (920, 85856), (1280, 61709), (1472, 53660), (1840, 42928), (2683, 29440), (2944, 26830), (3680, 21464), (5366, 14720), (5888, 13415), (7360, 10732)]