990990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1$

素因数の和:55

約数の個数: 144

約数和(自身を含む): 3485664

約数和(自身を除く): 2494674

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 18, 21, 22, 26, 30, 33, 35, 39, 42, 45, 55, 63, 65, 66, 70, 77, 78, 90, 91, 99, 105, 110, 117, 121, 126, 130, 143, 154, 165, 182, 195, 198, 210, 231, 234, 242, 273, 286, 315, 330, 363, 385, 390, 429, 455, 462, 495, 546, 585, 605, 630, 693, 715, 726, 770, 819, 847, 858, 910, 990, 1001, 1089, 1155, 1170, 1210, 1287, 1365, 1386, 1430, 1573, 1638, 1694, 1815, 2002, 2145, 2178, 2310, 2541, 2574, 2730, 3003, 3146, 3465, 3630, 4095, 4235, 4290, 4719, 5005, 5082, 5445, 6006, 6435, 6930, 7623, 7865, 8190, 8470, 9009, 9438, 10010, 10890, 11011, 12705, 12870, 14157, 15015, 15246, 15730, 18018, 22022, 23595, 25410, 28314, 30030, 33033, 38115, 45045, 47190, 55055, 66066, 70785, 76230, 90090, 99099, 110110, 141570, 165165, 198198, 330330, 495495, 990990]

約数ペア:

[(1, 990990), (2, 495495), (3, 330330), (5, 198198), (6, 165165), (7, 141570), (9, 110110), (10, 99099), (11, 90090), (13, 76230), (14, 70785), (15, 66066), (18, 55055), (21, 47190), (22, 45045), (26, 38115), (30, 33033), (33, 30030), (35, 28314), (39, 25410), (42, 23595), (45, 22022), (55, 18018), (63, 15730), (65, 15246), (66, 15015), (70, 14157), (77, 12870), (78, 12705), (90, 11011), (91, 10890), (99, 10010), (105, 9438), (110, 9009), (117, 8470), (121, 8190), (126, 7865), (130, 7623), (143, 6930), (154, 6435), (165, 6006), (182, 5445), (195, 5082), (198, 5005), (210, 4719), (231, 4290), (234, 4235), (242, 4095), (273, 3630), (286, 3465), (315, 3146), (330, 3003), (363, 2730), (385, 2574), (390, 2541), (429, 2310), (455, 2178), (462, 2145), (495, 2002), (546, 1815), (585, 1694), (605, 1638), (630, 1573), (693, 1430), (715, 1386), (726, 1365), (770, 1287), (819, 1210), (847, 1170), (858, 1155), (910, 1089), (990, 1001)]