19450640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 53193024

約数和(自身を除く): 33742384

約数列:

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

約数ペア:

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