313720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:76

約数の個数: 64

約数和(自身を含む): 829440

約数和(自身を除く): 515720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 31, 40, 44, 46, 55, 62, 88, 92, 110, 115, 124, 155, 184, 220, 230, 248, 253, 310, 341, 440, 460, 506, 620, 682, 713, 920, 1012, 1240, 1265, 1364, 1426, 1705, 2024, 2530, 2728, 2852, 3410, 3565, 5060, 5704, 6820, 7130, 7843, 10120, 13640, 14260, 15686, 28520, 31372, 39215, 62744, 78430, 156860, 313720]

約数ペア:

[(1, 313720), (2, 156860), (4, 78430), (5, 62744), (8, 39215), (10, 31372), (11, 28520), (20, 15686), (22, 14260), (23, 13640), (31, 10120), (40, 7843), (44, 7130), (46, 6820), (55, 5704), (62, 5060), (88, 3565), (92, 3410), (110, 2852), (115, 2728), (124, 2530), (155, 2024), (184, 1705), (220, 1426), (230, 1364), (248, 1265), (253, 1240), (310, 1012), (341, 920), (440, 713), (460, 682), (506, 620)]