38901280

素因数分解:

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

素因数の和:111

約数の個数: 144

約数和(自身を含む): 108101952

約数和(自身を除く): 69200672

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 31, 32, 40, 44, 46, 55, 62, 80, 88, 92, 110, 115, 124, 155, 160, 176, 184, 220, 230, 248, 253, 310, 341, 352, 368, 440, 460, 496, 506, 620, 682, 713, 736, 880, 920, 961, 992, 1012, 1240, 1265, 1364, 1426, 1705, 1760, 1840, 1922, 2024, 2480, 2530, 2728, 2852, 3410, 3565, 3680, 3844, 4048, 4805, 4960, 5060, 5456, 5704, 6820, 7130, 7688, 7843, 8096, 9610, 10120, 10571, 10912, 11408, 13640, 14260, 15376, 15686, 19220, 20240, 21142, 22103, 22816, 27280, 28520, 30752, 31372, 38440, 39215, 40480, 42284, 44206, 52855, 54560, 57040, 62744, 76880, 78430, 84568, 88412, 105710, 110515, 114080, 125488, 153760, 156860, 169136, 176824, 211420, 221030, 243133, 250976, 313720, 338272, 353648, 422840, 442060, 486266, 627440, 707296, 845680, 884120, 972532, 1215665, 1254880, 1691360, 1768240, 1945064, 2431330, 3536480, 3890128, 4862660, 7780256, 9725320, 19450640, 38901280]

約数ペア:

[(1, 38901280), (2, 19450640), (4, 9725320), (5, 7780256), (8, 4862660), (10, 3890128), (11, 3536480), (16, 2431330), (20, 1945064), (22, 1768240), (23, 1691360), (31, 1254880), (32, 1215665), (40, 972532), (44, 884120), (46, 845680), (55, 707296), (62, 627440), (80, 486266), (88, 442060), (92, 422840), (110, 353648), (115, 338272), (124, 313720), (155, 250976), (160, 243133), (176, 221030), (184, 211420), (220, 176824), (230, 169136), (248, 156860), (253, 153760), (310, 125488), (341, 114080), (352, 110515), (368, 105710), (440, 88412), (460, 84568), (496, 78430), (506, 76880), (620, 62744), (682, 57040), (713, 54560), (736, 52855), (880, 44206), (920, 42284), (961, 40480), (992, 39215), (1012, 38440), (1240, 31372), (1265, 30752), (1364, 28520), (1426, 27280), (1705, 22816), (1760, 22103), (1840, 21142), (1922, 20240), (2024, 19220), (2480, 15686), (2530, 15376), (2728, 14260), (2852, 13640), (3410, 11408), (3565, 10912), (3680, 10571), (3844, 10120), (4048, 9610), (4805, 8096), (4960, 7843), (5060, 7688), (5456, 7130), (5704, 6820)]