721868940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308491}}^1$

素因数の和:308519

約数の個数: 72

約数和(自身を含む): 2358112848

約数和(自身を除く): 1636243908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 308491, 616982, 925473, 1233964, 1542455, 1850946, 2776419, 3084910, 3701892, 4010383, 4627365, 5552838, 6169820, 8020766, 9254730, 11105676, 12031149, 13882095, 16041532, 18509460, 20051915, 24062298, 27764190, 36093447, 40103830, 48124596, 55528380, 60155745, 72186894, 80207660, 120311490, 144373788, 180467235, 240622980, 360934470, 721868940]

約数ペア:

[(1, 721868940), (2, 360934470), (3, 240622980), (4, 180467235), (5, 144373788), (6, 120311490), (9, 80207660), (10, 72186894), (12, 60155745), (13, 55528380), (15, 48124596), (18, 40103830), (20, 36093447), (26, 27764190), (30, 24062298), (36, 20051915), (39, 18509460), (45, 16041532), (52, 13882095), (60, 12031149), (65, 11105676), (78, 9254730), (90, 8020766), (117, 6169820), (130, 5552838), (156, 4627365), (180, 4010383), (195, 3701892), (234, 3084910), (260, 2776419), (390, 1850946), (468, 1542455), (585, 1233964), (780, 925473), (1170, 616982), (2340, 308491)]