2018281040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1\times {\mathrm{1319}}^1$

素因数の和:1980

約数の個数: 80

約数和(自身を含む): 4855403520

約数和(自身を除く): 2837122480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 617, 620, 1234, 1240, 1319, 2468, 2480, 2638, 3085, 4936, 5276, 6170, 6595, 9872, 10552, 12340, 13190, 19127, 21104, 24680, 26380, 38254, 40889, 49360, 52760, 76508, 81778, 95635, 105520, 153016, 163556, 191270, 204445, 306032, 327112, 382540, 408890, 654224, 765080, 813823, 817780, 1530160, 1627646, 1635560, 3255292, 3271120, 4069115, 6510584, 8138230, 13021168, 16276460, 25228513, 32552920, 50457026, 65105840, 100914052, 126142565, 201828104, 252285130, 403656208, 504570260, 1009140520, 2018281040]

約数ペア:

[(1, 2018281040), (2, 1009140520), (4, 504570260), (5, 403656208), (8, 252285130), (10, 201828104), (16, 126142565), (20, 100914052), (31, 65105840), (40, 50457026), (62, 32552920), (80, 25228513), (124, 16276460), (155, 13021168), (248, 8138230), (310, 6510584), (496, 4069115), (617, 3271120), (620, 3255292), (1234, 1635560), (1240, 1627646), (1319, 1530160), (2468, 817780), (2480, 813823), (2638, 765080), (3085, 654224), (4936, 408890), (5276, 382540), (6170, 327112), (6595, 306032), (9872, 204445), (10552, 191270), (12340, 163556), (13190, 153016), (19127, 105520), (21104, 95635), (24680, 81778), (26380, 76508), (38254, 52760), (40889, 49360)]