78016120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21433}}^1$

素因数の和:21464

約数の個数: 64

約数和(自身を含む): 216054720

約数和(自身を除く): 138038600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 21433, 42866, 85732, 107165, 150031, 171464, 214330, 278629, 300062, 428660, 557258, 600124, 750155, 857320, 1114516, 1200248, 1393145, 1500310, 1950403, 2229032, 2786290, 3000620, 3900806, 5572580, 6001240, 7801612, 9752015, 11145160, 15603224, 19504030, 39008060, 78016120]

約数ペア:

[(1, 78016120), (2, 39008060), (4, 19504030), (5, 15603224), (7, 11145160), (8, 9752015), (10, 7801612), (13, 6001240), (14, 5572580), (20, 3900806), (26, 3000620), (28, 2786290), (35, 2229032), (40, 1950403), (52, 1500310), (56, 1393145), (65, 1200248), (70, 1114516), (91, 857320), (104, 750155), (130, 600124), (140, 557258), (182, 428660), (260, 300062), (280, 278629), (364, 214330), (455, 171464), (520, 150031), (728, 107165), (910, 85732), (1820, 42866), (3640, 21433)]