28584990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 90803232

約数和(自身を除く): 62218242

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 51, 63, 70, 85, 90, 102, 105, 119, 126, 153, 157, 170, 210, 238, 255, 289, 306, 314, 315, 357, 471, 510, 578, 595, 630, 714, 765, 785, 867, 942, 1071, 1099, 1190, 1413, 1445, 1530, 1570, 1734, 1785, 2023, 2142, 2198, 2355, 2601, 2669, 2826, 2890, 3297, 3570, 4046, 4335, 4710, 5202, 5338, 5355, 5495, 6069, 6594, 7065, 8007, 8670, 9891, 10115, 10710, 10990, 12138, 13005, 13345, 14130, 16014, 16485, 18207, 18683, 19782, 20230, 24021, 26010, 26690, 30345, 32970, 36414, 37366, 40035, 45373, 48042, 49455, 56049, 60690, 80070, 90746, 91035, 93415, 98910, 112098, 120105, 136119, 168147, 182070, 186830, 226865, 240210, 272238, 280245, 317611, 336294, 408357, 453730, 560490, 635222, 680595, 816714, 840735, 952833, 1361190, 1588055, 1681470, 1905666, 2041785, 2858499, 3176110, 4083570, 4764165, 5716998, 9528330, 14292495, 28584990]

約数ペア:

[(1, 28584990), (2, 14292495), (3, 9528330), (5, 5716998), (6, 4764165), (7, 4083570), (9, 3176110), (10, 2858499), (14, 2041785), (15, 1905666), (17, 1681470), (18, 1588055), (21, 1361190), (30, 952833), (34, 840735), (35, 816714), (42, 680595), (45, 635222), (51, 560490), (63, 453730), (70, 408357), (85, 336294), (90, 317611), (102, 280245), (105, 272238), (119, 240210), (126, 226865), (153, 186830), (157, 182070), (170, 168147), (210, 136119), (238, 120105), (255, 112098), (289, 98910), (306, 93415), (314, 91035), (315, 90746), (357, 80070), (471, 60690), (510, 56049), (578, 49455), (595, 48042), (630, 45373), (714, 40035), (765, 37366), (785, 36414), (867, 32970), (942, 30345), (1071, 26690), (1099, 26010), (1190, 24021), (1413, 20230), (1445, 19782), (1530, 18683), (1570, 18207), (1734, 16485), (1785, 16014), (2023, 14130), (2142, 13345), (2198, 13005), (2355, 12138), (2601, 10990), (2669, 10710), (2826, 10115), (2890, 9891), (3297, 8670), (3570, 8007), (4046, 7065), (4335, 6594), (4710, 6069), (5202, 5495), (5338, 5355)]