31180860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1$

素因数の和:883

約数の個数: 72

約数和(自身を含む): 95056416

約数和(自身を除く): 63875556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 557, 622, 933, 1114, 1244, 1555, 1671, 1866, 2228, 2785, 2799, 3110, 3342, 3732, 4665, 5013, 5570, 5598, 6220, 6684, 8355, 9330, 10026, 11140, 11196, 13995, 16710, 18660, 20052, 25065, 27990, 33420, 50130, 55980, 100260, 173227, 346454, 519681, 692908, 866135, 1039362, 1559043, 1732270, 2078724, 2598405, 3118086, 3464540, 5196810, 6236172, 7795215, 10393620, 15590430, 31180860]

約数ペア:

[(1, 31180860), (2, 15590430), (3, 10393620), (4, 7795215), (5, 6236172), (6, 5196810), (9, 3464540), (10, 3118086), (12, 2598405), (15, 2078724), (18, 1732270), (20, 1559043), (30, 1039362), (36, 866135), (45, 692908), (60, 519681), (90, 346454), (180, 173227), (311, 100260), (557, 55980), (622, 50130), (933, 33420), (1114, 27990), (1244, 25065), (1555, 20052), (1671, 18660), (1866, 16710), (2228, 13995), (2785, 11196), (2799, 11140), (3110, 10026), (3342, 9330), (3732, 8355), (4665, 6684), (5013, 6220), (5570, 5598)]