290876740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 144

約数和(自身を含む): 785078784

約数和(自身を除く): 494202044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 223, 242, 245, 308, 385, 446, 484, 490, 539, 605, 770, 847, 892, 980, 1078, 1115, 1210, 1331, 1540, 1561, 1694, 2156, 2230, 2420, 2453, 2662, 2695, 3122, 3388, 4235, 4460, 4906, 5324, 5390, 5929, 6244, 6655, 7805, 8470, 9317, 9812, 10780, 10927, 11858, 12265, 13310, 15610, 16940, 17171, 18634, 21854, 23716, 24530, 26620, 26983, 29645, 31220, 34342, 37268, 43708, 46585, 49060, 53966, 54635, 59290, 65219, 68684, 85855, 93170, 107932, 109270, 118580, 120197, 130438, 134915, 171710, 186340, 188881, 218540, 240394, 260876, 269830, 296813, 326095, 343420, 377762, 480788, 539660, 593626, 600985, 652190, 755524, 944405, 1187252, 1201970, 1304380, 1322167, 1484065, 1888810, 2077691, 2403940, 2644334, 2968130, 3777620, 4155382, 5288668, 5936260, 6610835, 8310764, 10388455, 13221670, 14543837, 20776910, 26443340, 29087674, 41553820, 58175348, 72719185, 145438370, 290876740]

約数ペア:

[(1, 290876740), (2, 145438370), (4, 72719185), (5, 58175348), (7, 41553820), (10, 29087674), (11, 26443340), (14, 20776910), (20, 14543837), (22, 13221670), (28, 10388455), (35, 8310764), (44, 6610835), (49, 5936260), (55, 5288668), (70, 4155382), (77, 3777620), (98, 2968130), (110, 2644334), (121, 2403940), (140, 2077691), (154, 1888810), (196, 1484065), (220, 1322167), (223, 1304380), (242, 1201970), (245, 1187252), (308, 944405), (385, 755524), (446, 652190), (484, 600985), (490, 593626), (539, 539660), (605, 480788), (770, 377762), (847, 343420), (892, 326095), (980, 296813), (1078, 269830), (1115, 260876), (1210, 240394), (1331, 218540), (1540, 188881), (1561, 186340), (1694, 171710), (2156, 134915), (2230, 130438), (2420, 120197), (2453, 118580), (2662, 109270), (2695, 107932), (3122, 93170), (3388, 85855), (4235, 68684), (4460, 65219), (4906, 59290), (5324, 54635), (5390, 53966), (5929, 49060), (6244, 46585), (6655, 43708), (7805, 37268), (8470, 34342), (9317, 31220), (9812, 29645), (10780, 26983), (10927, 26620), (11858, 24530), (12265, 23716), (13310, 21854), (15610, 18634), (16940, 17171)]