1220757980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{19009}}^1$

素因数の和:19063

約数の個数: 72

約数和(自身を含む): 2922217200

約数和(自身を除く): 1701459220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1690, 2470, 3211, 3380, 4940, 6422, 12844, 16055, 19009, 32110, 38018, 64220, 76036, 95045, 190090, 247117, 361171, 380180, 494234, 722342, 988468, 1235585, 1444684, 1805855, 2471170, 3212521, 3611710, 4695223, 4942340, 6425042, 7223420, 9390446, 12850084, 16062605, 18780892, 23476115, 32125210, 46952230, 61037899, 64250420, 93904460, 122075798, 244151596, 305189495, 610378990, 1220757980]

約数ペア:

[(1, 1220757980), (2, 610378990), (4, 305189495), (5, 244151596), (10, 122075798), (13, 93904460), (19, 64250420), (20, 61037899), (26, 46952230), (38, 32125210), (52, 23476115), (65, 18780892), (76, 16062605), (95, 12850084), (130, 9390446), (169, 7223420), (190, 6425042), (247, 4942340), (260, 4695223), (338, 3611710), (380, 3212521), (494, 2471170), (676, 1805855), (845, 1444684), (988, 1235585), (1235, 988468), (1690, 722342), (2470, 494234), (3211, 380180), (3380, 361171), (4940, 247117), (6422, 190090), (12844, 95045), (16055, 76036), (19009, 64220), (32110, 38018)]