1991231130

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{503}}^1\times {\mathrm{2693}}^1$

素因数の和:3220

約数の個数: 96

約数和(自身を含む): 5572312704

約数和(自身を除く): 3581081574

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 503, 735, 1006, 1470, 1509, 2515, 2693, 3018, 3521, 5030, 5386, 7042, 7545, 8079, 10563, 13465, 15090, 16158, 17605, 18851, 21126, 24647, 26930, 35210, 37702, 40395, 49294, 52815, 56553, 73941, 80790, 94255, 105630, 113106, 123235, 131957, 147882, 188510, 246470, 263914, 282765, 369705, 395871, 565530, 659785, 739410, 791742, 1319570, 1354579, 1979355, 2709158, 3958710, 4063737, 6772895, 8127474, 9482053, 13545790, 18964106, 20318685, 28446159, 40637370, 47410265, 56892318, 66374371, 94820530, 132748742, 142230795, 199123113, 284461590, 331871855, 398246226, 663743710, 995615565, 1991231130]

約数ペア:

[(1, 1991231130), (2, 995615565), (3, 663743710), (5, 398246226), (6, 331871855), (7, 284461590), (10, 199123113), (14, 142230795), (15, 132748742), (21, 94820530), (30, 66374371), (35, 56892318), (42, 47410265), (49, 40637370), (70, 28446159), (98, 20318685), (105, 18964106), (147, 13545790), (210, 9482053), (245, 8127474), (294, 6772895), (490, 4063737), (503, 3958710), (735, 2709158), (1006, 1979355), (1470, 1354579), (1509, 1319570), (2515, 791742), (2693, 739410), (3018, 659785), (3521, 565530), (5030, 395871), (5386, 369705), (7042, 282765), (7545, 263914), (8079, 246470), (10563, 188510), (13465, 147882), (15090, 131957), (16158, 123235), (17605, 113106), (18851, 105630), (21126, 94255), (24647, 80790), (26930, 73941), (35210, 56553), (37702, 52815), (40395, 49294)]