71555440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 194844672

約数和(自身を除く): 123289232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 43, 44, 55, 61, 62, 80, 86, 88, 110, 122, 124, 155, 172, 176, 215, 220, 244, 248, 305, 310, 341, 344, 430, 440, 473, 488, 496, 610, 620, 671, 682, 688, 860, 880, 946, 976, 1220, 1240, 1333, 1342, 1364, 1705, 1720, 1891, 1892, 2365, 2440, 2480, 2623, 2666, 2684, 2728, 3355, 3410, 3440, 3782, 3784, 4730, 4880, 5246, 5332, 5368, 5456, 6665, 6710, 6820, 7564, 7568, 9455, 9460, 10492, 10664, 10736, 13115, 13330, 13420, 13640, 14663, 15128, 18910, 18920, 20801, 20984, 21328, 26230, 26660, 26840, 27280, 28853, 29326, 30256, 37820, 37840, 41602, 41968, 52460, 53320, 53680, 57706, 58652, 73315, 75640, 81313, 83204, 104005, 104920, 106640, 115412, 117304, 144265, 146630, 151280, 162626, 166408, 208010, 209840, 230824, 234608, 288530, 293260, 325252, 332816, 406565, 416020, 461648, 577060, 586520, 650504, 813130, 832040, 894443, 1154120, 1173040, 1301008, 1626260, 1664080, 1788886, 2308240, 3252520, 3577772, 4472215, 6505040, 7155544, 8944430, 14311088, 17888860, 35777720, 71555440]

約数ペア:

[(1, 71555440), (2, 35777720), (4, 17888860), (5, 14311088), (8, 8944430), (10, 7155544), (11, 6505040), (16, 4472215), (20, 3577772), (22, 3252520), (31, 2308240), (40, 1788886), (43, 1664080), (44, 1626260), (55, 1301008), (61, 1173040), (62, 1154120), (80, 894443), (86, 832040), (88, 813130), (110, 650504), (122, 586520), (124, 577060), (155, 461648), (172, 416020), (176, 406565), (215, 332816), (220, 325252), (244, 293260), (248, 288530), (305, 234608), (310, 230824), (341, 209840), (344, 208010), (430, 166408), (440, 162626), (473, 151280), (488, 146630), (496, 144265), (610, 117304), (620, 115412), (671, 106640), (682, 104920), (688, 104005), (860, 83204), (880, 81313), (946, 75640), (976, 73315), (1220, 58652), (1240, 57706), (1333, 53680), (1342, 53320), (1364, 52460), (1705, 41968), (1720, 41602), (1891, 37840), (1892, 37820), (2365, 30256), (2440, 29326), (2480, 28853), (2623, 27280), (2666, 26840), (2684, 26660), (2728, 26230), (3355, 21328), (3410, 20984), (3440, 20801), (3782, 18920), (3784, 18910), (4730, 15128), (4880, 14663), (5246, 13640), (5332, 13420), (5368, 13330), (5456, 13115), (6665, 10736), (6710, 10664), (6820, 10492), (7564, 9460), (7568, 9455)]