40505990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 88058880

約数和(自身を除く): 47552890

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 139, 161, 181, 230, 278, 322, 362, 695, 805, 905, 973, 1267, 1390, 1610, 1810, 1946, 2534, 3197, 4163, 4865, 6335, 6394, 8326, 9730, 12670, 15985, 20815, 22379, 25159, 29141, 31970, 41630, 44758, 50318, 58282, 111895, 125795, 145705, 176113, 223790, 251590, 291410, 352226, 578657, 880565, 1157314, 1761130, 2893285, 4050599, 5786570, 8101198, 20252995, 40505990]

約数ペア:

[(1, 40505990), (2, 20252995), (5, 8101198), (7, 5786570), (10, 4050599), (14, 2893285), (23, 1761130), (35, 1157314), (46, 880565), (70, 578657), (115, 352226), (139, 291410), (161, 251590), (181, 223790), (230, 176113), (278, 145705), (322, 125795), (362, 111895), (695, 58282), (805, 50318), (905, 44758), (973, 41630), (1267, 31970), (1390, 29141), (1610, 25159), (1810, 22379), (1946, 20815), (2534, 15985), (3197, 12670), (4163, 9730), (4865, 8326), (6335, 6394)]