30211940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1543}}^1$

素因数の和:1652

約数の個数: 48

約数和(自身を含む): 70035840

約数和(自身を除く): 39823900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1543, 1780, 1958, 3086, 3916, 4895, 6172, 7715, 9790, 15430, 16973, 19580, 30860, 33946, 67892, 84865, 137327, 169730, 274654, 339460, 549308, 686635, 1373270, 1510597, 2746540, 3021194, 6042388, 7552985, 15105970, 30211940]

約数ペア:

[(1, 30211940), (2, 15105970), (4, 7552985), (5, 6042388), (10, 3021194), (11, 2746540), (20, 1510597), (22, 1373270), (44, 686635), (55, 549308), (89, 339460), (110, 274654), (178, 169730), (220, 137327), (356, 84865), (445, 67892), (890, 33946), (979, 30860), (1543, 19580), (1780, 16973), (1958, 15430), (3086, 9790), (3916, 7715), (4895, 6172)]