19618425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 38997504

約数和(自身を除く): 19379079

約数列:

[1, 3, 5, 9, 15, 17, 23, 25, 45, 51, 69, 75, 85, 115, 153, 207, 223, 225, 255, 345, 391, 425, 575, 669, 765, 1035, 1115, 1173, 1275, 1725, 1955, 2007, 3345, 3519, 3791, 3825, 5129, 5175, 5575, 5865, 9775, 10035, 11373, 15387, 16725, 17595, 18955, 25645, 29325, 34119, 46161, 50175, 56865, 76935, 87193, 87975, 94775, 128225, 170595, 230805, 261579, 284325, 384675, 435965, 784737, 852975, 1154025, 1307895, 2179825, 3923685, 6539475, 19618425]

約数ペア:

[(1, 19618425), (3, 6539475), (5, 3923685), (9, 2179825), (15, 1307895), (17, 1154025), (23, 852975), (25, 784737), (45, 435965), (51, 384675), (69, 284325), (75, 261579), (85, 230805), (115, 170595), (153, 128225), (207, 94775), (223, 87975), (225, 87193), (255, 76935), (345, 56865), (391, 50175), (425, 46161), (575, 34119), (669, 29325), (765, 25645), (1035, 18955), (1115, 17595), (1173, 16725), (1275, 15387), (1725, 11373), (1955, 10035), (2007, 9775), (3345, 5865), (3519, 5575), (3791, 5175), (3825, 5129)]