31539440

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 78048576

約数和(自身を除く): 46509136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 184, 230, 244, 281, 305, 368, 460, 488, 562, 610, 920, 976, 1124, 1220, 1403, 1405, 1840, 2248, 2440, 2806, 2810, 4496, 4880, 5612, 5620, 6463, 7015, 11224, 11240, 12926, 14030, 17141, 22448, 22480, 25852, 28060, 32315, 34282, 51704, 56120, 64630, 68564, 85705, 103408, 112240, 129260, 137128, 171410, 258520, 274256, 342820, 394243, 517040, 685640, 788486, 1371280, 1576972, 1971215, 3153944, 3942430, 6307888, 7884860, 15769720, 31539440]

約数ペア:

[(1, 31539440), (2, 15769720), (4, 7884860), (5, 6307888), (8, 3942430), (10, 3153944), (16, 1971215), (20, 1576972), (23, 1371280), (40, 788486), (46, 685640), (61, 517040), (80, 394243), (92, 342820), (115, 274256), (122, 258520), (184, 171410), (230, 137128), (244, 129260), (281, 112240), (305, 103408), (368, 85705), (460, 68564), (488, 64630), (562, 56120), (610, 51704), (920, 34282), (976, 32315), (1124, 28060), (1220, 25852), (1403, 22480), (1405, 22448), (1840, 17141), (2248, 14030), (2440, 12926), (2806, 11240), (2810, 11224), (4496, 7015), (4880, 6463), (5612, 5620)]