72870980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{40039}}^1$

素因数の和:40068

約数の個数: 48

約数和(自身を含む): 188348160

約数和(自身を除く): 115477180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 40039, 80078, 160156, 200195, 280273, 400390, 520507, 560546, 800780, 1041014, 1121092, 1401365, 2082028, 2602535, 2802730, 3643549, 5205070, 5605460, 7287098, 10410140, 14574196, 18217745, 36435490, 72870980]

約数ペア:

[(1, 72870980), (2, 36435490), (4, 18217745), (5, 14574196), (7, 10410140), (10, 7287098), (13, 5605460), (14, 5205070), (20, 3643549), (26, 2802730), (28, 2602535), (35, 2082028), (52, 1401365), (65, 1121092), (70, 1041014), (91, 800780), (130, 560546), (140, 520507), (182, 400390), (260, 280273), (364, 200195), (455, 160156), (910, 80078), (1820, 40039)]