18859779540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{305471}}^1$

素因数の和:305507

約数の個数: 144

約数和(自身を含む): 66715084800

約数和(自身を除く): 47855305260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2205, 2940, 3087, 3430, 4116, 4410, 5145, 6174, 6860, 8820, 10290, 12348, 15435, 20580, 30870, 61740, 305471, 610942, 916413, 1221884, 1527355, 1832826, 2138297, 2749239, 3054710, 3665652, 4276594, 4582065, 5498478, 6109420, 6414891, 8553188, 9164130, 10691485, 10996956, 12829782, 13746195, 14968079, 18328260, 19244673, 21382970, 25659564, 27492390, 29936158, 32074455, 38489346, 42765940, 44904237, 54984780, 59872316, 64148910, 74840395, 76978692, 89808474, 96223365, 104776553, 128297820, 134712711, 149680790, 179616948, 192446730, 209553106, 224521185, 269425422, 299361580, 314329659, 384893460, 419106212, 449042370, 523882765, 538850844, 628659318, 673563555, 898084740, 942988977, 1047765530, 1257318636, 1347127110, 1571648295, 1885977954, 2095531060, 2694254220, 3143296590, 3771955908, 4714944885, 6286593180, 9429889770, 18859779540]

約数ペア:

[(1, 18859779540), (2, 9429889770), (3, 6286593180), (4, 4714944885), (5, 3771955908), (6, 3143296590), (7, 2694254220), (9, 2095531060), (10, 1885977954), (12, 1571648295), (14, 1347127110), (15, 1257318636), (18, 1047765530), (20, 942988977), (21, 898084740), (28, 673563555), (30, 628659318), (35, 538850844), (36, 523882765), (42, 449042370), (45, 419106212), (49, 384893460), (60, 314329659), (63, 299361580), (70, 269425422), (84, 224521185), (90, 209553106), (98, 192446730), (105, 179616948), (126, 149680790), (140, 134712711), (147, 128297820), (180, 104776553), (196, 96223365), (210, 89808474), (245, 76978692), (252, 74840395), (294, 64148910), (315, 59872316), (343, 54984780), (420, 44904237), (441, 42765940), (490, 38489346), (588, 32074455), (630, 29936158), (686, 27492390), (735, 25659564), (882, 21382970), (980, 19244673), (1029, 18328260), (1260, 14968079), (1372, 13746195), (1470, 12829782), (1715, 10996956), (1764, 10691485), (2058, 9164130), (2205, 8553188), (2940, 6414891), (3087, 6109420), (3430, 5498478), (4116, 4582065), (4410, 4276594), (5145, 3665652), (6174, 3054710), (6860, 2749239), (8820, 2138297), (10290, 1832826), (12348, 1527355), (15435, 1221884), (20580, 916413), (30870, 610942), (61740, 305471)]