855556415

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 1343485440

約数和(自身を除く): 487929025

約数列:

[1, 5, 7, 19, 23, 35, 49, 61, 95, 115, 131, 133, 161, 245, 305, 427, 437, 655, 665, 805, 917, 931, 1127, 1159, 1403, 2135, 2185, 2489, 2989, 3013, 3059, 4585, 4655, 5635, 5795, 6419, 7015, 7991, 8113, 9821, 12445, 14945, 15065, 15295, 17423, 21091, 21413, 26657, 32095, 39955, 40565, 49105, 55937, 56791, 57247, 68747, 87115, 105455, 107065, 121961, 133285, 147637, 151829, 183793, 186599, 279685, 283955, 286235, 343735, 391559, 400729, 609805, 738185, 759145, 918965, 932995, 1062803, 1286551, 1306193, 1957795, 2003645, 2805103, 3492067, 5314015, 6432755, 6530965, 7439621, 9005857, 14025515, 17460335, 24444469, 37198105, 45029285, 122222345, 171111283, 855556415]

約数ペア:

[(1, 855556415), (5, 171111283), (7, 122222345), (19, 45029285), (23, 37198105), (35, 24444469), (49, 17460335), (61, 14025515), (95, 9005857), (115, 7439621), (131, 6530965), (133, 6432755), (161, 5314015), (245, 3492067), (305, 2805103), (427, 2003645), (437, 1957795), (655, 1306193), (665, 1286551), (805, 1062803), (917, 932995), (931, 918965), (1127, 759145), (1159, 738185), (1403, 609805), (2135, 400729), (2185, 391559), (2489, 343735), (2989, 286235), (3013, 283955), (3059, 279685), (4585, 186599), (4655, 183793), (5635, 151829), (5795, 147637), (6419, 133285), (7015, 121961), (7991, 107065), (8113, 105455), (9821, 87115), (12445, 68747), (14945, 57247), (15065, 56791), (15295, 55937), (17423, 49105), (21091, 40565), (21413, 39955), (26657, 32095)]