1297121840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{74719}}^1$

素因数の和:74770

約数の個数: 80

約数和(自身を含む): 3557867520

約数和(自身を除く): 2260745680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 74719, 149438, 298876, 373595, 523033, 597752, 747190, 1046066, 1195504, 1494380, 2092132, 2316289, 2615165, 2988760, 4184264, 4632578, 5230330, 5977520, 8368528, 9265156, 10460660, 11581445, 16214023, 18530312, 20921320, 23162890, 32428046, 37060624, 41842640, 46325780, 64856092, 81070115, 92651560, 129712184, 162140230, 185303120, 259424368, 324280460, 648560920, 1297121840]

約数ペア:

[(1, 1297121840), (2, 648560920), (4, 324280460), (5, 259424368), (7, 185303120), (8, 162140230), (10, 129712184), (14, 92651560), (16, 81070115), (20, 64856092), (28, 46325780), (31, 41842640), (35, 37060624), (40, 32428046), (56, 23162890), (62, 20921320), (70, 18530312), (80, 16214023), (112, 11581445), (124, 10460660), (140, 9265156), (155, 8368528), (217, 5977520), (248, 5230330), (280, 4632578), (310, 4184264), (434, 2988760), (496, 2615165), (560, 2316289), (620, 2092132), (868, 1494380), (1085, 1195504), (1240, 1046066), (1736, 747190), (2170, 597752), (2480, 523033), (3472, 373595), (4340, 298876), (8680, 149438), (17360, 74719)]