161720235

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1181}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 298715040

約数和(自身を除く): 136994805

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 179, 255, 537, 765, 895, 1181, 1611, 2685, 3043, 3543, 5905, 8055, 9129, 10629, 15215, 17715, 20077, 27387, 45645, 53145, 60231, 100385, 136935, 180693, 211399, 301155, 634197, 903465, 1056995, 1902591, 3170985, 3593783, 9512955, 10781349, 17968915, 32344047, 53906745, 161720235]

約数ペア:

[(1, 161720235), (3, 53906745), (5, 32344047), (9, 17968915), (15, 10781349), (17, 9512955), (45, 3593783), (51, 3170985), (85, 1902591), (153, 1056995), (179, 903465), (255, 634197), (537, 301155), (765, 211399), (895, 180693), (1181, 136935), (1611, 100385), (2685, 60231), (3043, 53145), (3543, 45645), (5905, 27387), (8055, 20077), (9129, 17715), (10629, 15215)]