277804980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25301}}^1$

素因数の和:25377

約数の個数: 72

約数和(自身を含む): 856523304

約数和(自身を除く): 578718324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 25301, 50602, 75903, 101204, 126505, 151806, 227709, 253010, 303612, 379515, 455418, 506020, 759030, 910836, 1138545, 1518060, 1543361, 2277090, 3086722, 4554180, 4630083, 6173444, 7716805, 9260166, 13890249, 15433610, 18520332, 23150415, 27780498, 30867220, 46300830, 55560996, 69451245, 92601660, 138902490, 277804980]

約数ペア:

[(1, 277804980), (2, 138902490), (3, 92601660), (4, 69451245), (5, 55560996), (6, 46300830), (9, 30867220), (10, 27780498), (12, 23150415), (15, 18520332), (18, 15433610), (20, 13890249), (30, 9260166), (36, 7716805), (45, 6173444), (60, 4630083), (61, 4554180), (90, 3086722), (122, 2277090), (180, 1543361), (183, 1518060), (244, 1138545), (305, 910836), (366, 759030), (549, 506020), (610, 455418), (732, 379515), (915, 303612), (1098, 253010), (1220, 227709), (1830, 151806), (2196, 126505), (2745, 101204), (3660, 75903), (5490, 50602), (10980, 25301)]