18920850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:372

約数の個数: 96

約数和(自身を含む): 52329984

約数和(自身を除く): 33409134

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 31, 39, 50, 62, 65, 75, 78, 93, 130, 150, 155, 186, 195, 310, 313, 325, 390, 403, 465, 626, 650, 775, 806, 930, 939, 975, 1209, 1550, 1565, 1878, 1950, 2015, 2325, 2418, 3130, 4030, 4069, 4650, 4695, 6045, 7825, 8138, 9390, 9703, 10075, 12090, 12207, 15650, 19406, 20150, 20345, 23475, 24414, 29109, 30225, 40690, 46950, 48515, 58218, 60450, 61035, 97030, 101725, 122070, 126139, 145545, 203450, 242575, 252278, 291090, 305175, 378417, 485150, 610350, 630695, 727725, 756834, 1261390, 1455450, 1892085, 3153475, 3784170, 6306950, 9460425, 18920850]

約数ペア:

[(1, 18920850), (2, 9460425), (3, 6306950), (5, 3784170), (6, 3153475), (10, 1892085), (13, 1455450), (15, 1261390), (25, 756834), (26, 727725), (30, 630695), (31, 610350), (39, 485150), (50, 378417), (62, 305175), (65, 291090), (75, 252278), (78, 242575), (93, 203450), (130, 145545), (150, 126139), (155, 122070), (186, 101725), (195, 97030), (310, 61035), (313, 60450), (325, 58218), (390, 48515), (403, 46950), (465, 40690), (626, 30225), (650, 29109), (775, 24414), (806, 23475), (930, 20345), (939, 20150), (975, 19406), (1209, 15650), (1550, 12207), (1565, 12090), (1878, 10075), (1950, 9703), (2015, 9390), (2325, 8138), (2418, 7825), (3130, 6045), (4030, 4695), (4069, 4650)]