17888860

素因数分解:

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

素因数の和:155

約数の個数: 96

約数和(自身を含む): 43997184

約数和(自身を除く): 26108324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 43, 44, 55, 61, 62, 86, 110, 122, 124, 155, 172, 215, 220, 244, 305, 310, 341, 430, 473, 610, 620, 671, 682, 860, 946, 1220, 1333, 1342, 1364, 1705, 1891, 1892, 2365, 2623, 2666, 2684, 3355, 3410, 3782, 4730, 5246, 5332, 6665, 6710, 6820, 7564, 9455, 9460, 10492, 13115, 13330, 13420, 14663, 18910, 20801, 26230, 26660, 28853, 29326, 37820, 41602, 52460, 57706, 58652, 73315, 81313, 83204, 104005, 115412, 144265, 146630, 162626, 208010, 288530, 293260, 325252, 406565, 416020, 577060, 813130, 894443, 1626260, 1788886, 3577772, 4472215, 8944430, 17888860]

約数ペア:

[(1, 17888860), (2, 8944430), (4, 4472215), (5, 3577772), (10, 1788886), (11, 1626260), (20, 894443), (22, 813130), (31, 577060), (43, 416020), (44, 406565), (55, 325252), (61, 293260), (62, 288530), (86, 208010), (110, 162626), (122, 146630), (124, 144265), (155, 115412), (172, 104005), (215, 83204), (220, 81313), (244, 73315), (305, 58652), (310, 57706), (341, 52460), (430, 41602), (473, 37820), (610, 29326), (620, 28853), (671, 26660), (682, 26230), (860, 20801), (946, 18910), (1220, 14663), (1333, 13420), (1342, 13330), (1364, 13115), (1705, 10492), (1891, 9460), (1892, 9455), (2365, 7564), (2623, 6820), (2666, 6710), (2684, 6665), (3355, 5332), (3410, 5246), (3782, 4730)]