289209520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:842

約数の個数: 80

約数和(自身を含む): 692098560

約数和(自身を除く): 402889040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 79, 80, 134, 158, 268, 316, 335, 395, 536, 632, 670, 683, 790, 1072, 1264, 1340, 1366, 1580, 2680, 2732, 3160, 3415, 5293, 5360, 5464, 6320, 6830, 10586, 10928, 13660, 21172, 26465, 27320, 42344, 45761, 52930, 53957, 54640, 84688, 91522, 105860, 107914, 183044, 211720, 215828, 228805, 269785, 366088, 423440, 431656, 457610, 539570, 732176, 863312, 915220, 1079140, 1830440, 2158280, 3615119, 3660880, 4316560, 7230238, 14460476, 18075595, 28920952, 36151190, 57841904, 72302380, 144604760, 289209520]

約数ペア:

[(1, 289209520), (2, 144604760), (4, 72302380), (5, 57841904), (8, 36151190), (10, 28920952), (16, 18075595), (20, 14460476), (40, 7230238), (67, 4316560), (79, 3660880), (80, 3615119), (134, 2158280), (158, 1830440), (268, 1079140), (316, 915220), (335, 863312), (395, 732176), (536, 539570), (632, 457610), (670, 431656), (683, 423440), (790, 366088), (1072, 269785), (1264, 228805), (1340, 215828), (1366, 211720), (1580, 183044), (2680, 107914), (2732, 105860), (3160, 91522), (3415, 84688), (5293, 54640), (5360, 53957), (5464, 52930), (6320, 45761), (6830, 42344), (10586, 27320), (10928, 26465), (13660, 21172)]