19910640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3607}}^1$

素因数の和:3646

約数の個数: 80

約数和(自身を含む): 64424448

約数和(自身を除く): 44513808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3607, 5520, 7214, 10821, 14428, 18035, 21642, 28856, 36070, 43284, 54105, 57712, 72140, 82961, 86568, 108210, 144280, 165922, 173136, 216420, 248883, 288560, 331844, 414805, 432840, 497766, 663688, 829610, 865680, 995532, 1244415, 1327376, 1659220, 1991064, 2488830, 3318440, 3982128, 4977660, 6636880, 9955320, 19910640]

約数ペア:

[(1, 19910640), (2, 9955320), (3, 6636880), (4, 4977660), (5, 3982128), (6, 3318440), (8, 2488830), (10, 1991064), (12, 1659220), (15, 1327376), (16, 1244415), (20, 995532), (23, 865680), (24, 829610), (30, 663688), (40, 497766), (46, 432840), (48, 414805), (60, 331844), (69, 288560), (80, 248883), (92, 216420), (115, 173136), (120, 165922), (138, 144280), (184, 108210), (230, 86568), (240, 82961), (276, 72140), (345, 57712), (368, 54105), (460, 43284), (552, 36070), (690, 28856), (920, 21642), (1104, 18035), (1380, 14428), (1840, 10821), (2760, 7214), (3607, 5520)]