8009540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{743}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 21373632

約数和(自身を除く): 13364092

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 743, 770, 980, 1078, 1486, 1540, 2156, 2695, 2972, 3715, 5201, 5390, 7430, 8173, 10402, 10780, 14860, 16346, 20804, 26005, 32692, 36407, 40865, 52010, 57211, 72814, 81730, 104020, 114422, 145628, 163460, 182035, 228844, 286055, 364070, 400477, 572110, 728140, 800954, 1144220, 1601908, 2002385, 4004770, 8009540]

約数ペア:

[(1, 8009540), (2, 4004770), (4, 2002385), (5, 1601908), (7, 1144220), (10, 800954), (11, 728140), (14, 572110), (20, 400477), (22, 364070), (28, 286055), (35, 228844), (44, 182035), (49, 163460), (55, 145628), (70, 114422), (77, 104020), (98, 81730), (110, 72814), (140, 57211), (154, 52010), (196, 40865), (220, 36407), (245, 32692), (308, 26005), (385, 20804), (490, 16346), (539, 14860), (743, 10780), (770, 10402), (980, 8173), (1078, 7430), (1486, 5390), (1540, 5201), (2156, 3715), (2695, 2972)]