990291220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 2233889280

約数和(自身を除く): 1243598060

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 151, 212, 230, 265, 269, 302, 460, 530, 538, 604, 755, 1060, 1076, 1219, 1345, 1510, 2438, 2690, 3020, 3473, 4876, 5380, 6095, 6187, 6946, 8003, 12190, 12374, 13892, 14257, 16006, 17365, 24380, 24748, 28514, 30935, 32012, 34730, 40015, 40619, 57028, 61870, 69460, 71285, 80030, 81238, 123740, 142570, 160060, 162476, 184069, 203095, 285140, 327911, 368138, 406190, 655822, 736276, 812380, 920345, 934237, 1311644, 1639555, 1840690, 1868474, 2152807, 3279110, 3681380, 3736948, 4305614, 4671185, 6558220, 8611228, 9342370, 10764035, 18684740, 21528070, 43056140, 49514561, 99029122, 198058244, 247572805, 495145610, 990291220]

約数ペア:

[(1, 990291220), (2, 495145610), (4, 247572805), (5, 198058244), (10, 99029122), (20, 49514561), (23, 43056140), (46, 21528070), (53, 18684740), (92, 10764035), (106, 9342370), (115, 8611228), (151, 6558220), (212, 4671185), (230, 4305614), (265, 3736948), (269, 3681380), (302, 3279110), (460, 2152807), (530, 1868474), (538, 1840690), (604, 1639555), (755, 1311644), (1060, 934237), (1076, 920345), (1219, 812380), (1345, 736276), (1510, 655822), (2438, 406190), (2690, 368138), (3020, 327911), (3473, 285140), (4876, 203095), (5380, 184069), (6095, 162476), (6187, 160060), (6946, 142570), (8003, 123740), (12190, 81238), (12374, 80030), (13892, 71285), (14257, 69460), (16006, 61870), (17365, 57028), (24380, 40619), (24748, 40015), (28514, 34730), (30935, 32012)]