179637680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 429267168

約数和(自身を除く): 249629488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 131, 244, 262, 281, 305, 488, 524, 562, 610, 655, 976, 1048, 1124, 1220, 1310, 1405, 2096, 2248, 2440, 2620, 2810, 4496, 4880, 5240, 5620, 7991, 10480, 11240, 15982, 17141, 22480, 31964, 34282, 36811, 39955, 63928, 68564, 73622, 79910, 85705, 127856, 137128, 147244, 159820, 171410, 184055, 274256, 294488, 319640, 342820, 368110, 588976, 639280, 685640, 736220, 1371280, 1472440, 2245471, 2944880, 4490942, 8981884, 11227355, 17963768, 22454710, 35927536, 44909420, 89818840, 179637680]

約数ペア:

[(1, 179637680), (2, 89818840), (4, 44909420), (5, 35927536), (8, 22454710), (10, 17963768), (16, 11227355), (20, 8981884), (40, 4490942), (61, 2944880), (80, 2245471), (122, 1472440), (131, 1371280), (244, 736220), (262, 685640), (281, 639280), (305, 588976), (488, 368110), (524, 342820), (562, 319640), (610, 294488), (655, 274256), (976, 184055), (1048, 171410), (1124, 159820), (1220, 147244), (1310, 137128), (1405, 127856), (2096, 85705), (2248, 79910), (2440, 73622), (2620, 68564), (2810, 63928), (4496, 39955), (4880, 36811), (5240, 34282), (5620, 31964), (7991, 22480), (10480, 17141), (11240, 15982)]