30721845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 62355456

約数和(自身を除く): 31633611

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 67, 77, 105, 165, 201, 231, 335, 385, 397, 469, 737, 1005, 1155, 1191, 1407, 1985, 2211, 2345, 2779, 3685, 4367, 5159, 5955, 7035, 8337, 11055, 13101, 13895, 15477, 21835, 25795, 26599, 30569, 41685, 65505, 77385, 79797, 91707, 132995, 152845, 186193, 292589, 398985, 458535, 558579, 877767, 930965, 1462945, 2048123, 2792895, 4388835, 6144369, 10240615, 30721845]

約数ペア:

[(1, 30721845), (3, 10240615), (5, 6144369), (7, 4388835), (11, 2792895), (15, 2048123), (21, 1462945), (33, 930965), (35, 877767), (55, 558579), (67, 458535), (77, 398985), (105, 292589), (165, 186193), (201, 152845), (231, 132995), (335, 91707), (385, 79797), (397, 77385), (469, 65505), (737, 41685), (1005, 30569), (1155, 26599), (1191, 25795), (1407, 21835), (1985, 15477), (2211, 13895), (2345, 13101), (2779, 11055), (3685, 8337), (4367, 7035), (5159, 5955)]